$course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/grams to molecules g-mol 1 A pencil has about {C} grams of graphite (carbon) in it. How many carbon atoms is this?

]]> 1.0000000 0.3333333 0 0 0 abc 1 ({C}/12.01)*6.02E23 0.05 1 1 1 0 0.1000000 3 0 private C calculated uniform 0.5 4 1 100 1 1.0 2 1.4 3 0.9 4 4.0 5 1.1 6 3.1 7 2.4 8 3.2 9 1.4 10 0.8 11 2.9 12 1.4 13 2.7 14 1.6 15 1.4 16 3.3 17 0.7 18 1.3 19 3.0 20 3.9 21 3.6 22 2.1 23 3.3 24 3.0 25 2.4 26 2.7 27 2.2 28 2.6 29 3.7 30 0.8 31 1.3 32 3.0 33 3.3 34 0.9 35 3.8 36 3.0 37 0.7 38 3.1 39 1.6 40 3.2 41 3.3 42 2.1 43 0.6 44 2.2 45 1.6 46 1.8 47 2.0 48 2.4 49 1.5 50 1.7 51 2.3 52 3.3 53 2.8 54 2.7 55 0.7 56 1.7 57 1.3 58 3.8 59 3.8 60 3.2 61 3.9 62 4.0 63 1.1 64 0.8 65 0.9 66 1.0 67 1.6 68 2.7 69 2.3 70 1.2 71 3.1 72 3.0 73 3.6 74 1.0 75 1.2 76 3.6 77 3.8 78 1.8 79 1.3 80 3.5 81 1.3 82 1.7 83 2.2 84 3.7 85 3.5 86 0.6 87 1.3 88 1.7 89 3.8 90 2.0 91 3.7 92 1.2 93 2.8 94 3.2 95 2.4 96 2.1 97 1.7 98 1.5 99 1.6 100 1.0 100 g-mol 2 If a piece of pure gold jewelry weighs {Au} grams, how many atoms is it made of?

]]> 1.0000000 0.3333333 0 0 0 abc 1 ({Au}/196.97)*6.02E23 0.01 1 1 2 0 0.1000000 3 0 private Au calculated uniform 5 20 2 100 1 12.31 2 14.61 3 11.47 4 14.82 5 7.27 6 15.98 7 16.11 8 8.58 9 9.86 10 7.29 11 13.71 12 19.01 13 15.58 14 16.86 15 16.83 16 19.39 17 9.66 18 5.45 19 15.71 20 11.15 21 8.79 22 17.23 23 18.01 24 18.54 25 18.77 26 12.18 27 11.40 28 19.88 29 8.97 30 12.70 31 14.65 32 7.33 33 18.20 34 18.81 35 7.52 36 9.72 37 7.44 38 9.01 39 8.70 40 13.66 41 18.29 42 10.90 43 13.40 44 16.67 45 5.02 46 18.06 47 17.52 48 15.01 49 7.99 50 11.05 51 16.56 52 19.49 53 11.52 54 19.49 55 7.63 56 7.02 57 7.19 58 10.74 59 14.64 60 17.22 61 13.06 62 15.39 63 18.50 64 8.66 65 11.01 66 19.19 67 14.78 68 19.76 69 17.05 70 14.95 71 19.87 72 19.14 73 19.30 74 10.63 75 15.84 76 17.67 77 7.86 78 14.71 79 15.02 80 12.45 81 11.81 82 16.18 83 9.90 84 6.55 85 16.26 86 11.69 87 18.00 88 14.72 89 12.02 90 15.07 91 10.41 92 15.37 93 14.61 94 15.65 95 9.91 96 15.86 97 10.93 98 14.97 99 12.39 100 14.06 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/grams to moles g-mol1 {y} g MgSO4 = _______ mol

]]> 1.0000000 0.3333333 0 0 0 abc 1 {y}/120.3676 0.01 1 1 4 0 0.1000000 3 0 private y calculated uniform 5 30 2 100 1 21.76 2 9.25 3 22.25 4 5.82 5 11.23 6 25.65 7 14.74 8 15.13 9 24.00 10 18.21 11 24.78 12 25.88 13 28.68 14 17.61 15 10.98 16 29.61 17 22.70 18 18.91 19 6.35 20 23.45 21 18.08 22 10.13 23 10.97 24 26.51 25 27.41 26 25.38 27 19.69 28 27.41 29 14.49 30 19.97 31 18.32 32 28.71 33 14.68 34 23.04 35 17.73 36 11.91 37 17.67 38 23.85 39 8.01 40 17.12 41 29.71 42 17.19 43 8.54 44 7.68 45 16.34 46 24.34 47 16.16 48 29.03 49 18.13 50 6.00 51 24.67 52 27.30 53 9.45 54 26.42 55 29.68 56 11.30 57 14.40 58 14.86 59 5.59 60 24.78 61 14.40 62 24.34 63 9.58 64 21.89 65 26.35 66 6.70 67 20.87 68 15.41 69 21.84 70 13.53 71 7.36 72 5.19 73 11.14 74 13.01 75 15.69 76 21.42 77 27.84 78 23.23 79 11.06 80 22.84 81 18.08 82 17.47 83 13.14 84 24.32 85 28.12 86 15.15 87 14.59 88 14.74 89 22.30 90 15.11 91 29.23 92 21.18 93 28.71 94 28.31 95 20.16 96 17.26 97 24.93 98 27.88 99 10.35 100 13.48 100 g-mol2 {y} g CH4 = _______ mol

]]> 1.0000000 0.3333333 0 0 0 abc 1 {y}/16.0425 0.01 1 1 4 0 0.1000000 3 0 private y calculated uniform 5 30 2 100 1 21.76 2 9.25 3 22.25 4 5.82 5 11.23 6 25.65 7 14.74 8 15.13 9 24.00 10 18.21 11 24.78 12 25.88 13 28.68 14 17.61 15 10.98 16 29.61 17 22.70 18 18.91 19 6.35 20 23.45 21 18.08 22 10.13 23 10.97 24 26.51 25 27.41 26 25.38 27 19.69 28 27.41 29 14.49 30 19.97 31 18.32 32 28.71 33 14.68 34 23.04 35 17.73 36 11.91 37 17.67 38 23.85 39 8.01 40 17.12 41 29.71 42 17.19 43 8.54 44 7.68 45 16.34 46 24.34 47 16.16 48 29.03 49 18.13 50 6.00 51 24.67 52 27.30 53 9.45 54 26.42 55 29.68 56 11.30 57 14.40 58 14.86 59 5.59 60 24.78 61 14.40 62 24.34 63 9.58 64 21.89 65 26.35 66 6.70 67 20.87 68 15.41 69 21.84 70 13.53 71 7.36 72 5.19 73 11.14 74 13.01 75 15.69 76 21.42 77 27.84 78 23.23 79 11.06 80 22.84 81 18.08 82 17.47 83 13.14 84 24.32 85 28.12 86 15.15 87 14.59 88 14.74 89 22.30 90 15.11 91 29.23 92 21.18 93 28.71 94 28.31 95 20.16 96 17.26 97 24.93 98 27.88 99 10.35 100 13.48 100 g-mol3 {y} g KNO3 = _______ mol

]]> 1.0000000 0.3333333 0 0 0 abc 1 {y}/101.1032 0.01 1 1 4 0 0.1000000 3 0 private y calculated uniform 5 30 2 100 1 21.76 2 9.25 3 22.25 4 5.82 5 11.23 6 25.65 7 14.74 8 15.13 9 24.00 10 18.21 11 24.78 12 25.88 13 28.68 14 17.61 15 10.98 16 29.61 17 22.70 18 18.91 19 6.35 20 23.45 21 18.08 22 10.13 23 10.97 24 26.51 25 27.41 26 25.38 27 19.69 28 27.41 29 14.49 30 19.97 31 18.32 32 28.71 33 14.68 34 23.04 35 17.73 36 11.91 37 17.67 38 23.85 39 8.01 40 17.12 41 29.71 42 17.19 43 8.54 44 7.68 45 16.34 46 24.34 47 16.16 48 29.03 49 18.13 50 6.00 51 24.67 52 27.30 53 9.45 54 26.42 55 29.68 56 11.30 57 14.40 58 14.86 59 5.59 60 24.78 61 14.40 62 24.34 63 9.58 64 21.89 65 26.35 66 6.70 67 20.87 68 15.41 69 21.84 70 13.53 71 7.36 72 5.19 73 11.14 74 13.01 75 15.69 76 21.42 77 27.84 78 23.23 79 11.06 80 22.84 81 18.08 82 17.47 83 13.14 84 24.32 85 28.12 86 15.15 87 14.59 88 14.74 89 22.30 90 15.11 91 29.23 92 21.18 93 28.71 94 28.31 95 20.16 96 17.26 97 24.93 98 27.88 99 10.35 100 13.48 100 g-mol4 {y} g NH4NO3 = _______ mol

]]> 1.0000000 0.3333333 0 0 0 abc 1 {y}/80.0434 0.01 1 1 4 0 0.1000000 3 0 private y calculated uniform 5 30 2 100 1 21.76 2 9.25 3 22.25 4 5.82 5 11.23 6 25.65 7 14.74 8 15.13 9 24.00 10 18.21 11 24.78 12 25.88 13 28.68 14 17.61 15 10.98 16 29.61 17 22.70 18 18.91 19 6.35 20 23.45 21 18.08 22 10.13 23 10.97 24 26.51 25 27.41 26 25.38 27 19.69 28 27.41 29 14.49 30 19.97 31 18.32 32 28.71 33 14.68 34 23.04 35 17.73 36 11.91 37 17.67 38 23.85 39 8.01 40 17.12 41 29.71 42 17.19 43 8.54 44 7.68 45 16.34 46 24.34 47 16.16 48 29.03 49 18.13 50 6.00 51 24.67 52 27.30 53 9.45 54 26.42 55 29.68 56 11.30 57 14.40 58 14.86 59 5.59 60 24.78 61 14.40 62 24.34 63 9.58 64 21.89 65 26.35 66 6.70 67 20.87 68 15.41 69 21.84 70 13.53 71 7.36 72 5.19 73 11.14 74 13.01 75 15.69 76 21.42 77 27.84 78 23.23 79 11.06 80 22.84 81 18.08 82 17.47 83 13.14 84 24.32 85 28.12 86 15.15 87 14.59 88 14.74 89 22.30 90 15.11 91 29.23 92 21.18 93 28.71 94 28.31 95 20.16 96 17.26 97 24.93 98 27.88 99 10.35 100 13.48 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/molecules to grams mc-g1 If a beaker has {x} x 10{y} molecules of water in it, how many grams of water would that be?

]]> 1.0000000 0.3333333 0 0 0 abc 1 ({x}*pow(10,{y})/6.022E23)*18.02 0.03 1 2 3 0 0.1000000 3 0 private x calculated uniform 1 9.9 2 100 1 2.93 2 2.22 3 2.80 4 2.99 5 8.86 6 7.39 7 3.10 8 2.13 9 7.20 10 4.89 11 6.05 12 8.87 13 1.48 14 3.87 15 9.90 16 6.09 17 1.87 18 6.29 19 2.44 20 3.67 21 7.72 22 9.12 23 3.17 24 3.98 25 8.78 26 4.74 27 2.49 28 5.61 29 4.30 30 9.62 31 8.64 32 3.80 33 7.73 34 5.63 35 2.36 36 9.62 37 4.18 38 7.28 39 9.42 40 2.04 41 3.47 42 5.18 43 6.45 44 1.91 45 6.14 46 4.37 47 3.37 48 9.73 49 8.28 50 9.09 51 4.77 52 2.15 53 6.02 54 4.96 55 1.81 56 9.02 57 7.09 58 1.47 59 2.24 60 9.60 61 9.68 62 5.49 63 2.29 64 9.80 65 7.94 66 9.21 67 3.46 68 7.33 69 4.90 70 4.84 71 4.61 72 7.11 73 5.16 74 4.01 75 6.30 76 8.85 77 5.04 78 9.31 79 1.75 80 7.79 81 8.24 82 7.90 83 2.14 84 9.73 85 6.68 86 6.63 87 1.70 88 3.71 89 4.33 90 8.15 91 3.36 92 5.32 93 2.00 94 4.65 95 7.47 96 3.45 97 9.67 98 4.93 99 7.61 100 9.49 100 private y calculated uniform 18 26 0 100 1 23 2 23 3 19 4 20 5 23 6 21 7 23 8 19 9 21 10 19 11 19 12 19 13 24 14 24 15 24 16 25 17 23 18 19 19 20 20 20 21 21 22 25 23 22 24 21 25 20 26 20 27 23 28 18 29 23 30 25 31 22 32 25 33 25 34 20 35 20 36 20 37 25 38 22 39 23 40 23 41 22 42 22 43 24 44 24 45 20 46 24 47 20 48 20 49 22 50 21 51 19 52 18 53 21 54 25 55 19 56 25 57 18 58 19 59 22 60 20 61 21 62 21 63 25 64 19 65 22 66 20 67 18 68 20 69 20 70 23 71 19 72 26 73 20 74 19 75 25 76 18 77 25 78 18 79 22 80 22 81 19 82 20 83 25 84 22 85 25 86 21 87 21 88 21 89 25 90 19 91 19 92 25 93 25 94 20 95 20 96 26 97 19 98 23 99 19 100 23 100 mc-g2 Car tires are sometimes filled with pure nitrogen (N2). If a tire has {x} x 10{y} molecules of N2 in it, how many grams of nitrogen would that be?

]]> 1.0000000 0.3333333 0 0 0 abc 1 ({x}*pow(10,{y})/6.022E23)*28.02 0.01 1 2 6 0 0.1000000 3 0 private x calculated uniform 1 9.9 2 100 1 2.42 2 1.46 3 2.19 4 8.12 5 4.76 6 6.98 7 4.46 8 2.16 9 2.42 10 3.80 11 7.31 12 2.87 13 9.34 14 7.90 15 5.40 16 5.90 17 1.56 18 1.55 19 6.36 20 2.97 21 9.34 22 1.61 23 5.35 24 1.53 25 2.03 26 5.00 27 3.73 28 1.55 29 4.92 30 4.15 31 6.48 32 6.04 33 6.55 34 8.37 35 8.23 36 7.47 37 2.03 38 5.69 39 2.21 40 9.56 41 1.97 42 9.76 43 7.45 44 7.98 45 5.22 46 5.42 47 7.09 48 8.24 49 3.31 50 4.34 51 3.09 52 5.19 53 3.99 54 3.58 55 8.93 56 5.35 57 5.98 58 9.39 59 1.74 60 7.31 61 4.16 62 3.35 63 1.45 64 7.00 65 5.23 66 2.58 67 8.47 68 4.22 69 8.95 70 5.27 71 2.19 72 7.32 73 9.52 74 7.35 75 6.69 76 2.66 77 5.52 78 1.48 79 7.02 80 5.86 81 1.90 82 1.81 83 6.25 84 6.25 85 4.81 86 5.14 87 6.65 88 3.01 89 4.30 90 4.51 91 7.02 92 2.19 93 5.64 94 5.61 95 5.78 96 2.51 97 1.31 98 8.92 99 8.75 100 2.35 100 private y calculated uniform 20 22 0 100 1 22 2 21 3 20 4 22 5 22 6 21 7 21 8 22 9 21 10 21 11 22 12 22 13 21 14 22 15 22 16 21 17 21 18 22 19 21 20 21 21 20 22 20 23 21 24 21 25 20 26 20 27 20 28 21 29 22 30 21 31 21 32 22 33 20 34 21 35 21 36 21 37 21 38 21 39 21 40 20 41 22 42 21 43 22 44 21 45 21 46 21 47 22 48 21 49 21 50 22 51 22 52 20 53 21 54 21 55 21 56 20 57 22 58 21 59 20 60 22 61 22 62 21 63 22 64 21 65 22 66 20 67 20 68 21 69 22 70 22 71 21 72 20 73 22 74 21 75 22 76 21 77 20 78 21 79 20 80 20 81 20 82 21 83 21 84 20 85 21 86 21 87 22 88 21 89 20 90 20 91 22 92 21 93 20 94 20 95 21 96 21 97 20 98 22 99 21 100 21 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/moles to grams mol-g1 {x} mol KNO3 = ______ g

]]> 1.0000000 0.3333333 0 0 0 abc 1 {x}*101.1 0.01 1 1 2 0 0.1000000 3 0 private x calculated uniform 0.01 1 4 100 1 0.1634 2 0.3501 3 0.7943 4 0.2449 5 0.5166 6 0.4194 7 0.9205 8 0.2330 9 0.8181 10 0.4138 11 0.8335 12 0.5024 13 0.9205 14 0.8647 15 0.5807 16 0.3624 17 0.7779 18 0.8370 19 0.0241 20 0.1921 21 0.1094 22 0.1143 23 0.1850 24 0.6625 25 0.9763 26 0.0356 27 0.0307 28 0.9045 29 0.8392 30 0.8812 31 0.2044 32 0.6414 33 0.3224 34 0.3492 35 0.6584 36 0.0124 37 0.5703 38 0.7176 39 0.7836 40 0.5796 41 0.1063 42 0.1788 43 0.6456 44 0.9074 45 0.5547 46 0.0732 47 0.4776 48 0.5814 49 0.2847 50 0.8363 51 0.3665 52 0.7152 53 0.3372 54 0.9080 55 0.3625 56 0.4895 57 0.9546 58 0.4609 59 0.4872 60 0.0987 61 0.8285 62 0.8694 63 0.5224 64 0.1947 65 0.4255 66 0.6105 67 0.3180 68 0.1028 69 0.1646 70 0.5756 71 0.6406 72 0.4724 73 0.3774 74 0.0226 75 0.0301 76 0.0749 77 0.0469 78 0.8530 79 0.3801 80 0.2525 81 0.8446 82 0.7051 83 0.1510 84 0.8521 85 0.5848 86 0.9186 87 0.8401 88 0.6141 89 0.0131 90 0.7931 91 0.9156 92 0.2143 93 0.5508 94 0.2906 95 0.3763 96 0.7695 97 0.5799 98 0.9101 99 0.7987 100 0.5325 100 mol-g2 {x} mol MgSO4 = ______ g

]]> 1.0000000 0.3333333 0 0 0 abc 1 {x}*120.3676 0.01 1 1 2 0 0.1000000 3 0 private x calculated uniform 0.01 1 4 100 1 0.1634 2 0.3501 3 0.7943 4 0.2449 5 0.5166 6 0.4194 7 0.9205 8 0.2330 9 0.8181 10 0.4138 11 0.8335 12 0.5024 13 0.9205 14 0.8647 15 0.5807 16 0.3624 17 0.7779 18 0.8370 19 0.0241 20 0.1921 21 0.1094 22 0.1143 23 0.1850 24 0.6625 25 0.9763 26 0.0356 27 0.0307 28 0.9045 29 0.8392 30 0.8812 31 0.2044 32 0.6414 33 0.3224 34 0.3492 35 0.6584 36 0.0124 37 0.5703 38 0.7176 39 0.7836 40 0.5796 41 0.1063 42 0.1788 43 0.6456 44 0.9074 45 0.5547 46 0.0732 47 0.4776 48 0.5814 49 0.2847 50 0.8363 51 0.3665 52 0.7152 53 0.3372 54 0.9080 55 0.3625 56 0.4895 57 0.9546 58 0.4609 59 0.4872 60 0.0987 61 0.8285 62 0.8694 63 0.5224 64 0.1947 65 0.4255 66 0.6105 67 0.3180 68 0.1028 69 0.1646 70 0.5756 71 0.6406 72 0.4724 73 0.3774 74 0.0226 75 0.0301 76 0.0749 77 0.0469 78 0.8530 79 0.3801 80 0.2525 81 0.8446 82 0.7051 83 0.1510 84 0.8521 85 0.5848 86 0.9186 87 0.8401 88 0.6141 89 0.0131 90 0.7931 91 0.9156 92 0.2143 93 0.5508 94 0.2906 95 0.3763 96 0.7695 97 0.5799 98 0.9101 99 0.7987 100 0.5325 100 mol-g3 {x} mol CH4 = ______ g

]]> 1.0000000 0.3333333 0 0 0 abc 1 {x}*16.0425 0.01 1 1 2 0 0.1000000 3 0 private x calculated uniform 0.01 1 4 100 1 0.1634 2 0.3501 3 0.7943 4 0.2449 5 0.5166 6 0.4194 7 0.9205 8 0.2330 9 0.8181 10 0.4138 11 0.8335 12 0.5024 13 0.9205 14 0.8647 15 0.5807 16 0.3624 17 0.7779 18 0.8370 19 0.0241 20 0.1921 21 0.1094 22 0.1143 23 0.1850 24 0.6625 25 0.9763 26 0.0356 27 0.0307 28 0.9045 29 0.8392 30 0.8812 31 0.2044 32 0.6414 33 0.3224 34 0.3492 35 0.6584 36 0.0124 37 0.5703 38 0.7176 39 0.7836 40 0.5796 41 0.1063 42 0.1788 43 0.6456 44 0.9074 45 0.5547 46 0.0732 47 0.4776 48 0.5814 49 0.2847 50 0.8363 51 0.3665 52 0.7152 53 0.3372 54 0.9080 55 0.3625 56 0.4895 57 0.9546 58 0.4609 59 0.4872 60 0.0987 61 0.8285 62 0.8694 63 0.5224 64 0.1947 65 0.4255 66 0.6105 67 0.3180 68 0.1028 69 0.1646 70 0.5756 71 0.6406 72 0.4724 73 0.3774 74 0.0226 75 0.0301 76 0.0749 77 0.0469 78 0.8530 79 0.3801 80 0.2525 81 0.8446 82 0.7051 83 0.1510 84 0.8521 85 0.5848 86 0.9186 87 0.8401 88 0.6141 89 0.0131 90 0.7931 91 0.9156 92 0.2143 93 0.5508 94 0.2906 95 0.3763 96 0.7695 97 0.5799 98 0.9101 99 0.7987 100 0.5325 100 mol-g4 {x} mol NH4NO3 = ______ g

]]> 1.0000000 0.3333333 0 0 0 abc 1 {x}*80.0434 0.01 1 1 2 0 0.1000000 3 0 private x calculated uniform 0.01 1 4 100 1 0.1634 2 0.3501 3 0.7943 4 0.2449 5 0.5166 6 0.4194 7 0.9205 8 0.2330 9 0.8181 10 0.4138 11 0.8335 12 0.5024 13 0.9205 14 0.8647 15 0.5807 16 0.3624 17 0.7779 18 0.8370 19 0.0241 20 0.1921 21 0.1094 22 0.1143 23 0.1850 24 0.6625 25 0.9763 26 0.0356 27 0.0307 28 0.9045 29 0.8392 30 0.8812 31 0.2044 32 0.6414 33 0.3224 34 0.3492 35 0.6584 36 0.0124 37 0.5703 38 0.7176 39 0.7836 40 0.5796 41 0.1063 42 0.1788 43 0.6456 44 0.9074 45 0.5547 46 0.0732 47 0.4776 48 0.5814 49 0.2847 50 0.8363 51 0.3665 52 0.7152 53 0.3372 54 0.9080 55 0.3625 56 0.4895 57 0.9546 58 0.4609 59 0.4872 60 0.0987 61 0.8285 62 0.8694 63 0.5224 64 0.1947 65 0.4255 66 0.6105 67 0.3180 68 0.1028 69 0.1646 70 0.5756 71 0.6406 72 0.4724 73 0.3774 74 0.0226 75 0.0301 76 0.0749 77 0.0469 78 0.8530 79 0.3801 80 0.2525 81 0.8446 82 0.7051 83 0.1510 84 0.8521 85 0.5848 86 0.9186 87 0.8401 88 0.6141 89 0.0131 90 0.7931 91 0.9156 92 0.2143 93 0.5508 94 0.2906 95 0.3763 96 0.7695 97 0.5799 98 0.9101 99 0.7987 100 0.5325 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/moles to molecules mol-mc1 {mol} mol NH4NO3 = _____ molecules

]]> 1.0000000 0.3333333 0 0 0 abc 1 {mol}*6.02E23 0.01 1 1 3 0 0.1000000 3 0 private mol calculated uniform 0.1 3 3 100 1 2.021 2 1.717 3 0.761 4 2.150 5 0.508 6 2.858 7 2.523 8 0.205 9 2.056 10 2.270 11 2.599 12 0.563 13 0.693 14 2.987 15 0.430 16 2.770 17 0.683 18 0.364 19 2.883 20 2.551 21 2.313 22 2.161 23 1.897 24 0.908 25 2.524 26 0.387 27 0.769 28 2.998 29 1.366 30 0.360 31 2.970 32 0.548 33 2.127 34 0.723 35 2.247 36 1.871 37 1.962 38 1.395 39 2.982 40 1.227 41 2.193 42 1.698 43 1.953 44 2.596 45 0.444 46 0.304 47 0.697 48 1.786 49 2.484 50 1.532 51 0.576 52 2.049 53 1.736 54 2.857 55 1.046 56 0.975 57 1.442 58 2.101 59 1.516 60 0.224 61 2.305 62 0.509 63 2.434 64 1.281 65 0.788 66 0.563 67 0.341 68 1.194 69 1.037 70 2.969 71 1.055 72 1.914 73 0.656 74 1.958 75 0.850 76 1.444 77 1.653 78 0.594 79 0.880 80 1.629 81 0.646 82 0.835 83 1.541 84 0.564 85 2.773 86 2.857 87 0.680 88 0.201 89 2.456 90 2.023 91 2.126 92 1.607 93 0.196 94 2.868 95 1.271 96 2.211 97 1.715 98 2.325 99 1.585 100 2.035 100 mol-mc1 (copy) {mol} mol C2H5OH = _____ molecules

]]> 1.0000000 0.3333333 0 0 0 abc 1 {mol}*6.02E23 0.01 1 1 3 0 0.1000000 3 0 private mol calculated uniform 0.1 3 3 100 1 2.021 2 1.717 3 0.761 4 2.150 5 0.508 6 2.858 7 2.523 8 0.205 9 2.056 10 2.270 11 2.599 12 0.563 13 0.693 14 2.987 15 0.430 16 2.770 17 0.683 18 0.364 19 2.883 20 2.551 21 2.313 22 2.161 23 1.897 24 0.908 25 2.524 26 0.387 27 0.769 28 2.998 29 1.366 30 0.360 31 2.970 32 0.548 33 2.127 34 0.723 35 2.247 36 1.871 37 1.962 38 1.395 39 2.982 40 1.227 41 2.193 42 1.698 43 1.953 44 2.596 45 0.444 46 0.304 47 0.697 48 1.786 49 2.484 50 1.532 51 0.576 52 2.049 53 1.736 54 2.857 55 1.046 56 0.975 57 1.442 58 2.101 59 1.516 60 0.224 61 2.305 62 0.509 63 2.434 64 1.281 65 0.788 66 0.563 67 0.341 68 1.194 69 1.037 70 2.969 71 1.055 72 1.914 73 0.656 74 1.958 75 0.850 76 1.444 77 1.653 78 0.594 79 0.880 80 1.629 81 0.646 82 0.835 83 1.541 84 0.564 85 2.773 86 2.857 87 0.680 88 0.201 89 2.456 90 2.023 91 2.126 92 1.607 93 0.196 94 2.868 95 1.271 96 2.211 97 1.715 98 2.325 99 1.585 100 2.035 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/molar mass organic molar mass What is the molar mass of C{c}H{h}O{o}?

]]> 1.0000000 0.3333333 0 0 0 abc 1 {c}*12.01+{h}*1.01+{o}*16 0.2 2 1 2 0 0.1000000 3 0 private c calculated uniform 4 10 0 100 1 9 2 9 3 8 4 9 5 9 6 6 7 7 8 8 9 7 10 5 11 5 12 6 13 8 14 5 15 5 16 7 17 7 18 7 19 7 20 7 21 4 22 6 23 6 24 6 25 9 26 8 27 4 28 10 29 7 30 9 31 8 32 8 33 5 34 7 35 4 36 8 37 8 38 9 39 9 40 9 41 10 42 5 43 6 44 7 45 8 46 4 47 8 48 7 49 5 50 5 51 4 52 6 53 10 54 7 55 9 56 7 57 9 58 7 59 7 60 8 61 6 62 6 63 5 64 9 65 8 66 5 67 9 68 8 69 6 70 8 71 10 72 7 73 8 74 10 75 5 76 7 77 6 78 9 79 7 80 8 81 10 82 6 83 10 84 7 85 6 86 7 87 5 88 4 89 7 90 8 91 8 92 4 93 8 94 6 95 5 96 5 97 9 98 5 99 9 100 10 100 private h calculated uniform 6 20 0 100 1 8 2 6 3 14 4 12 5 18 6 19 7 12 8 7 9 15 10 7 11 17 12 12 13 10 14 14 15 17 16 20 17 15 18 15 19 16 20 19 21 12 22 11 23 9 24 8 25 14 26 13 27 19 28 14 29 13 30 10 31 18 32 15 33 12 34 19 35 11 36 9 37 16 38 11 39 10 40 12 41 20 42 10 43 19 44 19 45 8 46 14 47 19 48 14 49 15 50 7 51 8 52 6 53 17 54 7 55 9 56 10 57 8 58 11 59 15 60 8 61 10 62 12 63 8 64 18 65 9 66 13 67 14 68 11 69 11 70 6 71 17 72 14 73 8 74 17 75 16 76 14 77 7 78 9 79 17 80 19 81 19 82 11 83 13 84 9 85 12 86 12 87 11 88 9 89 19 90 16 91 14 92 13 93 10 94 16 95 14 96 7 97 6 98 11 99 6 100 19 100 private o calculated uniform 1 3 0 100 1 2 2 3 3 2 4 2 5 2 6 3 7 2 8 2 9 3 10 3 11 2 12 3 13 2 14 2 15 2 16 2 17 3 18 1 19 2 20 3 21 2 22 3 23 1 24 2 25 3 26 2 27 1 28 3 29 2 30 2 31 1 32 2 33 3 34 2 35 2 36 2 37 1 38 2 39 1 40 2 41 1 42 2 43 2 44 3 45 2 46 3 47 2 48 2 49 1 50 2 51 3 52 2 53 2 54 3 55 2 56 1 57 3 58 3 59 3 60 2 61 1 62 3 63 2 64 2 65 3 66 1 67 1 68 1 69 3 70 1 71 2 72 3 73 3 74 2 75 3 76 3 77 2 78 2 79 1 80 2 81 2 82 3 83 3 84 1 85 1 86 3 87 2 88 2 89 2 90 1 91 1 92 2 93 2 94 2 95 3 96 3 97 2 98 1 99 3 100 3 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4B: determining formulas/find percent composition percent comp - organic C In the compound C{c}H{h}O{o}, what percent by mass is carbon? ______ %

Round your answer to two decimal places.

]]> 1.0000000 0.3333333 0 0 0 abc 1 100*({c}*12.01)/({c}*12.01+{h}*1.01+{o}*16) 0.01 1 1 2 0 0.1000000 3 0 private c calculated uniform 4 10 0 100 1 10 2 8 3 6 4 6 5 8 6 4 7 6 8 9 9 4 10 9 11 5 12 9 13 4 14 5 15 9 16 9 17 6 18 10 19 7 20 5 21 6 22 9 23 4 24 5 25 6 26 7 27 7 28 7 29 5 30 9 31 6 32 5 33 7 34 6 35 6 36 8 37 5 38 7 39 5 40 8 41 6 42 6 43 7 44 9 45 6 46 6 47 5 48 9 49 5 50 9 51 4 52 5 53 7 54 6 55 6 56 6 57 9 58 7 59 4 60 7 61 7 62 6 63 7 64 9 65 9 66 6 67 4 68 5 69 6 70 8 71 9 72 6 73 7 74 5 75 4 76 9 77 6 78 6 79 8 80 7 81 8 82 8 83 8 84 10 85 5 86 7 87 7 88 7 89 10 90 4 91 8 92 9 93 9 94 5 95 6 96 6 97 5 98 6 99 9 100 8 100 private h calculated uniform 6 18 0 100 1 14 2 16 3 10 4 14 5 15 6 9 7 9 8 16 9 13 10 14 11 7 12 8 13 6 14 10 15 9 16 9 17 18 18 6 19 8 20 11 21 9 22 11 23 16 24 13 25 8 26 18 27 7 28 7 29 13 30 14 31 18 32 10 33 9 34 14 35 15 36 7 37 9 38 8 39 11 40 15 41 8 42 15 43 10 44 6 45 13 46 16 47 12 48 6 49 11 50 17 51 16 52 10 53 17 54 7 55 11 56 7 57 12 58 11 59 8 60 17 61 14 62 14 63 6 64 13 65 15 66 13 67 16 68 16 69 14 70 16 71 13 72 10 73 16 74 11 75 16 76 17 77 16 78 9 79 14 80 8 81 16 82 8 83 10 84 18 85 12 86 14 87 12 88 12 89 12 90 15 91 13 92 14 93 6 94 9 95 15 96 9 97 11 98 11 99 8 100 14 100 private o calculated uniform 2 4 0 100 1 3 2 2 3 3 4 2 5 2 6 3 7 2 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 2 20 2 21 3 22 4 23 3 24 3 25 4 26 2 27 3 28 3 29 3 30 3 31 3 32 2 33 3 34 3 35 4 36 3 37 3 38 3 39 2 40 2 41 3 42 3 43 2 44 3 45 3 46 2 47 2 48 3 49 3 50 2 51 3 52 4 53 3 54 3 55 2 56 3 57 4 58 2 59 4 60 4 61 4 62 4 63 2 64 4 65 4 66 3 67 3 68 2 69 2 70 2 71 4 72 3 73 4 74 4 75 3 76 3 77 4 78 2 79 3 80 2 81 3 82 3 83 3 84 4 85 2 86 2 87 2 88 3 89 4 90 4 91 3 92 4 93 3 94 3 95 4 96 2 97 3 98 4 99 2 100 2 100 percent comp - organic H In the compound C{c}H{h}O{o}, what percent by mass is hydrogen? ______ %

]]> 1.0000000 0.3333333 0 0 0 abc 1 100*({h}*1.01)/({c}*12.01+{h}*1.01+{o}*16) 0.01 1 1 2 0 0.1000000 3 0 private c calculated uniform 4 10 0 100 1 10 2 8 3 6 4 6 5 8 6 4 7 6 8 9 9 4 10 9 11 5 12 9 13 4 14 5 15 9 16 9 17 6 18 10 19 7 20 5 21 6 22 9 23 4 24 5 25 6 26 7 27 7 28 7 29 5 30 9 31 6 32 5 33 7 34 6 35 6 36 8 37 5 38 7 39 5 40 8 41 6 42 6 43 7 44 9 45 6 46 6 47 5 48 9 49 5 50 9 51 4 52 5 53 7 54 6 55 6 56 6 57 9 58 7 59 4 60 7 61 7 62 6 63 7 64 9 65 9 66 6 67 4 68 5 69 6 70 8 71 9 72 6 73 7 74 5 75 4 76 9 77 6 78 6 79 8 80 7 81 8 82 8 83 8 84 10 85 5 86 7 87 7 88 7 89 10 90 4 91 8 92 9 93 9 94 5 95 6 96 6 97 5 98 6 99 9 100 8 100 private h calculated uniform 6 18 0 100 1 14 2 16 3 10 4 14 5 15 6 9 7 9 8 16 9 13 10 14 11 7 12 8 13 6 14 10 15 9 16 9 17 18 18 6 19 8 20 11 21 9 22 11 23 16 24 13 25 8 26 18 27 7 28 7 29 13 30 14 31 18 32 10 33 9 34 14 35 15 36 7 37 9 38 8 39 11 40 15 41 8 42 15 43 10 44 6 45 13 46 16 47 12 48 6 49 11 50 17 51 16 52 10 53 17 54 7 55 11 56 7 57 12 58 11 59 8 60 17 61 14 62 14 63 6 64 13 65 15 66 13 67 16 68 16 69 14 70 16 71 13 72 10 73 16 74 11 75 16 76 17 77 16 78 9 79 14 80 8 81 16 82 8 83 10 84 18 85 12 86 14 87 12 88 12 89 12 90 15 91 13 92 14 93 6 94 9 95 15 96 9 97 11 98 11 99 8 100 14 100 private o calculated uniform 2 4 0 100 1 3 2 2 3 3 4 2 5 2 6 3 7 2 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 2 20 2 21 3 22 4 23 3 24 3 25 4 26 2 27 3 28 3 29 3 30 3 31 3 32 2 33 3 34 3 35 4 36 3 37 3 38 3 39 2 40 2 41 3 42 3 43 2 44 3 45 3 46 2 47 2 48 3 49 3 50 2 51 3 52 4 53 3 54 3 55 2 56 3 57 4 58 2 59 4 60 4 61 4 62 4 63 2 64 4 65 4 66 3 67 3 68 2 69 2 70 2 71 4 72 3 73 4 74 4 75 3 76 3 77 4 78 2 79 3 80 2 81 3 82 3 83 3 84 4 85 2 86 2 87 2 88 3 89 4 90 4 91 3 92 4 93 3 94 3 95 4 96 2 97 3 98 4 99 2 100 2 100 percent comp - organic O In the compound C{c}H{h}O{o}, what percent by mass is hydrogen? ______ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 0 0 abc 1 100*({h}*1.01)/({c}*12.01+{h}*1.01+{o}*16) 0.01 1 1 2 0 0.1000000 3 0 private c calculated uniform 4 10 0 100 1 10 2 8 3 6 4 6 5 8 6 4 7 6 8 9 9 4 10 9 11 5 12 9 13 4 14 5 15 9 16 9 17 6 18 10 19 7 20 5 21 6 22 9 23 4 24 5 25 6 26 7 27 7 28 7 29 5 30 9 31 6 32 5 33 7 34 6 35 6 36 8 37 5 38 7 39 5 40 8 41 6 42 6 43 7 44 9 45 6 46 6 47 5 48 9 49 5 50 9 51 4 52 5 53 7 54 6 55 6 56 6 57 9 58 7 59 4 60 7 61 7 62 6 63 7 64 9 65 9 66 6 67 4 68 5 69 6 70 8 71 9 72 6 73 7 74 5 75 4 76 9 77 6 78 6 79 8 80 7 81 8 82 8 83 8 84 10 85 5 86 7 87 7 88 7 89 10 90 4 91 8 92 9 93 9 94 5 95 6 96 6 97 5 98 6 99 9 100 8 100 private h calculated uniform 6 18 0 100 1 14 2 16 3 10 4 14 5 15 6 9 7 9 8 16 9 13 10 14 11 7 12 8 13 6 14 10 15 9 16 9 17 18 18 6 19 8 20 11 21 9 22 11 23 16 24 13 25 8 26 18 27 7 28 7 29 13 30 14 31 18 32 10 33 9 34 14 35 15 36 7 37 9 38 8 39 11 40 15 41 8 42 15 43 10 44 6 45 13 46 16 47 12 48 6 49 11 50 17 51 16 52 10 53 17 54 7 55 11 56 7 57 12 58 11 59 8 60 17 61 14 62 14 63 6 64 13 65 15 66 13 67 16 68 16 69 14 70 16 71 13 72 10 73 16 74 11 75 16 76 17 77 16 78 9 79 14 80 8 81 16 82 8 83 10 84 18 85 12 86 14 87 12 88 12 89 12 90 15 91 13 92 14 93 6 94 9 95 15 96 9 97 11 98 11 99 8 100 14 100 private o calculated uniform 2 4 0 100 1 3 2 2 3 3 4 2 5 2 6 3 7 2 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 2 20 2 21 3 22 4 23 3 24 3 25 4 26 2 27 3 28 3 29 3 30 3 31 3 32 2 33 3 34 3 35 4 36 3 37 3 38 3 39 2 40 2 41 3 42 3 43 2 44 3 45 3 46 2 47 2 48 3 49 3 50 2 51 3 52 4 53 3 54 3 55 2 56 3 57 4 58 2 59 4 60 4 61 4 62 4 63 2 64 4 65 4 66 3 67 3 68 2 69 2 70 2 71 4 72 3 73 4 74 4 75 3 76 3 77 4 78 2 79 3 80 2 81 3 82 3 83 3 84 4 85 2 86 2 87 2 88 3 89 4 90 4 91 3 92 4 93 3 94 3 95 4 96 2 97 3 98 4 99 2 100 2 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/conversion problems/molecules to moles mc-mol1 {x} x 10{y} molecules CO2 = _____ mol

]]> 2.0000000 0.3333333 0 0 0 abc 0 {x}*pow(10,{y})/6.022E23 0.1 1 1 2 0 0.1000000 3 0 private x calculatedsimple uniform 1.0 10.0 1 100 1 2.5 2 6.0 3 8.7 4 3.5 5 6.6 6 4.6 7 8.6 8 7.0 9 7.1 10 9.6 11 6.8 12 5.8 13 9.8 14 6.4 15 8.1 16 4.3 17 6.5 18 9.1 19 5.9 20 3.7 21 4.6 22 7.3 23 4.5 24 3.6 25 9.1 26 5.2 27 1.2 28 3.3 29 8.7 30 9.6 31 3.2 32 7.2 33 7.9 34 9.9 35 7.0 36 2.6 37 3.5 38 9.3 39 3.0 40 6.1 41 6.8 42 3.4 43 5.8 44 2.7 45 1.5 46 7.8 47 7.2 48 8.7 49 5.1 50 1.8 51 5.1 52 4.8 53 2.3 54 6.1 55 1.6 56 6.7 57 7.0 58 8.1 59 9.7 60 6.0 61 7.3 62 7.4 63 3.7 64 2.9 65 5.2 66 1.9 67 8.8 68 1.5 69 1.7 70 6.4 71 8.0 72 7.8 73 2.8 74 3.0 75 2.2 76 3.2 77 3.5 78 3.5 79 9.4 80 7.8 81 2.0 82 9.8 83 9.9 84 6.3 85 7.3 86 2.6 87 7.5 88 5.7 89 8.8 90 4.1 91 2.6 92 8.7 93 4.0 94 7.0 95 7.2 96 1.7 97 3.6 98 7.5 99 4.6 100 6.0 100 private y calculatedsimple uniform 1.0 10.0 1 100 1 23 2 24 3 23 4 21 5 24 6 22 7 22 8 22 9 24 10 23 11 24 12 23 13 23 14 23 15 22 16 22 17 25 18 22 19 21 20 23 21 23 22 22 23 24 24 24 25 24 26 24 27 21 28 24 29 23 30 22 31 21 32 24 33 22 34 24 35 23 36 22 37 22 38 24 39 25 40 23 41 22 42 25 43 24 44 25 45 22 46 22 47 24 48 24 49 21 50 23 51 25 52 24 53 23 54 23 55 25 56 23 57 22 58 24 59 23 60 25 61 24 62 23 63 21 64 21 65 21 66 23 67 23 68 23 69 23 70 22 71 21 72 24 73 25 74 22 75 24 76 23 77 25 78 21 79 22 80 22 81 22 82 24 83 24 84 22 85 22 86 23 87 23 88 22 89 21 90 23 91 24 92 24 93 23 94 23 95 22 96 23 97 24 98 23 99 24 100 23 100 mc-mol1 (copy) {x} x 10{y} molecules H2O = _____ mol

]]> 2.0000000 0.3333333 0 0 0 abc 0 {x}*pow(10,{y})/6.022E23 0.1 1 1 2 0 0.1000000 3 0 private x calculatedsimple uniform 1.0 10.0 1 100 1 2.5 2 6.0 3 8.7 4 3.5 5 6.6 6 4.6 7 8.6 8 7.0 9 7.1 10 9.6 11 6.8 12 5.8 13 9.8 14 6.4 15 8.1 16 4.3 17 6.5 18 9.1 19 5.9 20 3.7 21 4.6 22 7.3 23 4.5 24 3.6 25 9.1 26 5.2 27 1.2 28 3.3 29 8.7 30 9.6 31 3.2 32 7.2 33 7.9 34 9.9 35 7.0 36 2.6 37 3.5 38 9.3 39 3.0 40 6.1 41 6.8 42 3.4 43 5.8 44 2.7 45 1.5 46 7.8 47 7.2 48 8.7 49 5.1 50 1.8 51 5.1 52 4.8 53 2.3 54 6.1 55 1.6 56 6.7 57 7.0 58 8.1 59 9.7 60 6.0 61 7.3 62 7.4 63 3.7 64 2.9 65 5.2 66 1.9 67 8.8 68 1.5 69 1.7 70 6.4 71 8.0 72 7.8 73 2.8 74 3.0 75 2.2 76 3.2 77 3.5 78 3.5 79 9.4 80 7.8 81 2.0 82 9.8 83 9.9 84 6.3 85 7.3 86 2.6 87 7.5 88 5.7 89 8.8 90 4.1 91 2.6 92 8.7 93 4.0 94 7.0 95 7.2 96 1.7 97 3.6 98 7.5 99 4.6 100 6.0 100 private y calculatedsimple uniform 1.0 10.0 1 100 1 23 2 24 3 23 4 21 5 24 6 22 7 22 8 22 9 24 10 23 11 24 12 23 13 23 14 23 15 22 16 22 17 25 18 22 19 21 20 23 21 23 22 22 23 24 24 24 25 24 26 24 27 21 28 24 29 23 30 22 31 21 32 24 33 22 34 24 35 23 36 22 37 22 38 24 39 25 40 23 41 22 42 25 43 24 44 25 45 22 46 22 47 24 48 24 49 21 50 23 51 25 52 24 53 23 54 23 55 25 56 23 57 22 58 24 59 23 60 25 61 24 62 23 63 21 64 21 65 21 66 23 67 23 68 23 69 23 70 22 71 21 72 24 73 25 74 22 75 24 76 23 77 25 78 21 79 22 80 22 81 22 82 24 83 24 84 22 85 22 86 23 87 23 88 22 89 21 90 23 91 24 92 24 93 23 94 23 95 22 96 23 97 24 98 23 99 24 100 23 100 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4A: mole conversions/molar mass mm1 What is the molar mass of Na2CO3?

]]> 1.0000000 0.3333333 0 105.9884 0.2 0 0.1000000 3 0 mm10 What is the molar mass of NaHCO3?

]]> 1.0000000 0.3333333 0 84.0066 0.2 0 0.1000000 3 0 mm2 What is the molar mass of H2O2?

]]> 1.0000000 0.3333333 0 34.01468 0.2 0 0.1000000 3 0 mm3 What is the molar mass of CaCO3?

]]> 1.0000000 0.3333333 0 100.0869 0.2 0 0.1000000 3 0 mm4 What is the molar mass of CaCl2?

]]> 1.0000000 0.3333333 0 110.984 0.2 0 0.1000000 3 0 mm5 What is the molar mass of CO2?

]]> 1.0000000 0.3333333 0 44.0095 0.2 0 0.1000000 3 0 mm6 What is the molar mass of H2O?

]]> 1.0000000 0.3333333 0 18.01528 0.2 0 0.1000000 3 0 mm7 What is the molar mass of O2?

]]> 1.0000000 0.3333333 0 31.9988 0.2 0 0.1000000 3 0 mm8 What is the molar mass of C6H12O6?

]]> 1.0000000 0.3333333 0 180.1559 0.2 0 0.1000000 3 0 mm9 What is the molar mass of Mg(OH)2?

]]> 1.0000000 0.3333333 0 58.3197 0.2 0 0.1000000 3 0 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4B: determining formulas/find percent composition percent comp 1 In Na2SO4, what percent (by mass) is Na? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 32.37 0.05 0.3237 You forgot to convert to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 2 In Na2SO4, what percent (by mass) is S? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 22.57 0.05 0.2257 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 3 In Na2SO4, what percent (by mass) is O? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 45.06 0.05 0.4506 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 4 In Na2CO3, what percent (by mass) is Na? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 43.38 0.05 0.4338 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 5 In Na2CO3, what percent (by mass) is C? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 11.33 0.05 0.1133 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 6 In Na2CO3, what percent (by mass) is O? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 45.29 0.05 0.4529 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 7 In Mg(OH)2, what percent (by mass) is Mg? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 41.68 0.05 0.4168 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 8 In Mg(OH)2, what percent (by mass) is O? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 54.87 0.05 0.5487 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 percent comp 9 In Mg(OH)2, what percent (by mass) is H? ________ %

Round your answer to 2 decimal places.

]]> 1.0000000 0.3333333 0 3.46 0.05 0.0346 You forgot to convert your answer to a percentage by multiplying x100

]]> 0.01 0 0.1000000 3 0 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4B: determining formulas/find empirical formula ef1 A compound is 20.24% aluminum and 79.76% chlorine. What is its empirical formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 AlCl3 ef2 A compound is 52.93% aluminum and 47.07% oxygen. What is its empirical formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 Al2O3 ef3 A compound is 5.93% hydrogen and 94.07% oxygen. What is its empirical formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 HO ef4 A compound is 35.36% sodium and 64.64% nitrogen. What is its empirical formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 NaN3 ef5 A compound is 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen. What is its empirical formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 CHO2 $course$/Chemistry Common Assessments/Semester 1/Quarter 2/Unit 4: Chemical Quantities/4B: determining formulas/find molecular formula mf1 A compound is 87.42% nitrogen and 12.58% hydrogen. It has a molar mass of 32.05 g/mol. What is its molecular formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 N2H4 mf2 A compound is 30.45% nitrogen and 69.55% oxygen. It has a molar mass of 92.01 g/mol. What is its molecular formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 N2O4 mf3 A compound is 83.63% carbon and 16.37% hydrogen. It has a molar mass of 86.18 g/mol. What is its molecular formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 C6H14 mf4 A compound is 81.71% carbon and 18.29% hydrogen. It has a molar mass of 44.10 g/mol. What is its molecular formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 C3H8 mf5 A compound is 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen. It has a molar mass of 90.03 g/mol. What is its molecular formula? Type it in the space below. Letters are case-sensitive (upper-case/lower-case DOES matter).

]]> 1.0000000 0.3333333 0 1 C2H2O4