What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH is 0.1010? The density of the solution is 1.2219 g/mL.

Question

Quizplus · Accepted Answer

To find the mass percent, first calculate the moles of NaOH and water using the mole fraction. Then, convert moles to grams and find the total mass of the solution. Finally, calculate the mass percent using the formula: (mass of NaOH/total mass of solution) x 100%. The correct calculation leads to approximately 20.0%.

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