Question

bleach is used to clean, sterilize, and whiten when exposed to sunlight. a sample of bleach was composed of 22.99 g of na, 35.45 g of cl, and 16.00 g of o. what is the percent cl? % cl

Explanation:

Step1: Calculate the total mass

Add the masses of Na, Cl, and O.
$$22.99 + 35.45+16.00=74.44\ \text{g}$$

Step2: Calculate the percentage of Cl

Use the formula $\text{Percentage of Cl}=\frac{\text{Mass of Cl}}{\text{Total mass}}\times100\%$.
$$\frac{35.45}{74.44}\times 100\% \approx 47.62\%$$

Answer:

$47.62$