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Title: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH is 0.231? Post by: Nursing2010 on Jan 14, 2013 What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction
of NaOH is 0.231? The density of the solution is 1.4339 g/mL. Title: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH is 0.231? Post by: smokeyjou on Jan 14, 2013 You have 0.231 mol NaOH dissolved in 1.00-0.231 = 0.769 mol H2O
Molar mass NaOH = 40g/mol 0.231mol = 0.231*40 = 9.24g NaOH molar mass H2O = 18g/mol 0.769 mol = 0.769*18 = 13.84g H2O You have 9.24+13.84 = 23.08 g solution in total Mass % NaOH = 9.24/23.08*100 = 40.0% m/m Title: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH is 0.231? Post by: leon1977 on Jan 14, 2013 Content hidden
Title: Re: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of N Post by: rei on Jul 11, 2013 an aqueous solution contains 700 grams water and 45 grams sodium hydroxide.what is the percent by mass of sodium hydroxide?
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