Answer to Question #321369 in General Chemistry for Davzz

Question

Kai wants to make a cleaning solution of water and chlorine to disinfect their home. He diluted 45 grams of solid chlorine to 150 grams of water. What is the percent by mass of the cleaning solution?

Answer 1

Solution:

Percent by mass = (Mass of solute / Mass of solution) × 100%

Mass of solute = Mass of solid chlorine = 45 g

Mass of solution = Mass of solid chlorine + Mass of water = 45 g + 150 g = 195 g

Therefore,

Percent by mass = (45 g / 195 g) × 100% = 23.077% = 23%

Percent by mass = 23%

Answer: The percent by mass of the cleaning solution is 23%