A solution contains 100.0 g water,10.0 g NaCl,and 15.0 g methanol.What is the weight percent of methanol in the solution?

Name: A solution contains 100.0 g water,10.0 g NaCl,and 15.0 g methanol.What is the weight percent of methanol in the solution?
Brand: Quizplus
Rating: 4.8 (51 reviews)

Question

Quizplus · Accepted Answer

Weight percent of methanol = (mass of methanol / total mass of solution) x 100%
= (15.0 g / (100.0 g + 10.0 g + 15.0 g)) x 100%
= (15.0 g / 125.0 g) x 100%
= 12.0%

Therefore, the weight percent of methanol in the solution is 12.0%. The correct answer is C.

A Solution Contains 100