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英文化学题!求解!Findthepercentbymassofsodiumchlorideina1.35MNaClsolution.thedensityofthesolutionis1.05g/mL
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英文化学题!求解!
Find the percent by mass of sodium chloride in a 1.35M NaCl solution. the density of the solution is 1.05g/mL
Find the percent by mass of sodium chloride in a 1.35M NaCl solution. the density of the solution is 1.05g/mL
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答案和解析
1.35 mol/L的 NaCl溶液的质量分数是多少
假设溶液体积是1000 mL,那么溶液质量 = 1000 ÷ 1.05 = 952.38 g
溶质质量 = 1.35 × (23+35.5) = 78.975 g
质量分数 = 78.975 ÷ 952.38 = 0.0829 = 8.29%
假设溶液体积是1000 mL,那么溶液质量 = 1000 ÷ 1.05 = 952.38 g
溶质质量 = 1.35 × (23+35.5) = 78.975 g
质量分数 = 78.975 ÷ 952.38 = 0.0829 = 8.29%
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