Question

2

22. A sodium chloride solution is 15.0% m/m%. Calculate mass of sodium chloride in 219 g solution.
14.2g
80.38
11.2 g
32.9 g

Answer 1

Answer: The mass of sodium chloride in 219 g solution is 32.9 g

Step-by-step explanation:

To calculate the mass percent of element in a given compound, we use the formula:

`\text{Mass percent of A}=\frac{\text{Mass of A}}{\text{mass of A +mass of B}}* 100`

To find mass of sodium chloride in solution:

`\text{Mass percent of sodium chloride}=\frac{\text{Mass of sodium chloride}}{\text{mass of solution}}* 100`

Mass percent of sodium chloride= 15.0 %

Mass of solution = 219g

`15=\frac{\text{Mass of sodium chloride}}{219}* 100`

`{\text{Mass of sodium chloride}=32.9g`

Thus mass of sodium chloride in 219 g solution is 32.9 g