Calculate the mass percent of NaOCl in bleach

What is the mass percent of NaOCl in the bleach sample? The mass percent of NaOCl in the bleach sample is 3.56%

When dealing with solutions, it is important to understand the concept of mass percent. Mass percent is a way to express the concentration of a solute in a solution. It is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

In the given scenario, a 407 g sample of bleach contains 14.5 g of NaOCl. To calculate the mass percent of NaOCl in the bleach, we use the formula:

Mass percent = (mass of solute ÷ mass of solution) × 100

Plugging in the values, we have:

Mass percent = (14.5 g ÷ 407 g) × 100 = 3.56%

Therefore, the mass percent of NaOCl in the bleach sample is 3.56%. This means that for every 100 grams of the bleach solution, 3.56 grams is NaOCl.

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