Answer: The mass percent of copper in [tex]CuBr_2[/tex] is 28.45 %.
Explanation:
In [tex]CuBr_2[/tex], there are 1 copper atom and 2 bromine atoms.
To calculate the mass percent of element in a given compound, we use the formula:
[tex]\text{Mass percent of copper}=\frac{\text{Mass of copper}}{\text{Molar mass of copper bromide}}\times 100[/tex]
Mass of copper= 63.54 g
Mass of copper bromide = 223.37 g
Putting values in above equation, we get:
[tex]\text{Mass percent of copper}=\frac{63.54}{223.37}\times 100=28.45\%[/tex]
Hence, the mass percent of copper in copper bromide is 28.45 %.
