You have 1287.7 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of NaOCl are in the solution?

Question

You have 1287.7 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of NaOCl are in the solution?

Answer 1

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Percent by mass means grams solute per 100 grams of solution.

3.62% = 3.62 g NaOCl/100 g solution

3.62 g NaOCl/100 g solution = 0.0362 g NaOCl/g solution

1287.7 g solution x 0.0362 g NaOCl/g solution = 46.6 g of NaOCl

Answer 2

1287.7 * 3.62 /100 = 46.6 grams