Question

An aqueous NaBr solution has a mass of 270.0 g and contains 27.50 g NaBr. Calculate the mass percent NaBr .

Answer 1

Answer: The mass percent of NaBr in the solution is 10.18 %

Explanation:

To calculate the mass percentage of calcium ions in milk, we use the equation:

$\text{Mass percent of NaBr}=\frac{\text{Mass of NaBr}}{\text{Mass of solution}}\times 100$

We are given:

Mass of solution = 270.0 g

Mass of NaBr = 27.50 g

Putting values in above equation, we get:

$\text{Mass percent of NaBr}=\frac{27.50g}{270.0g}\times 100=10.18\%$

Hence, the mass percent of NaBr in the solution is 10.18 %