Question

The percent by mass of copper in CuBr2 is

Answer 1

Answer: The mass percent of copper in $CuBr_2$ is 28.45 %.

Explanation:

In $CuBr_2$, there are 1 copper atom and 2 bromine atoms.

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

$\text{Mass percent of copper}=\frac{\text{Mass of copper}}{\text{Molar mass of copper bromide}}\times 100$

Mass of copper= 63.54 g

Mass of copper bromide = 223.37 g

Putting values in above equation, we get:

$\text{Mass percent of copper}=\frac{63.54}{223.37}\times 100=28.45\%$

Hence, the mass percent of copper in copper bromide is 28.45 %.

Answer 2

Hope this helps you.