Question

Gram molecular weight of copper sulphate is :

• A. $160g$
• B. $148g$
• C. $163g$
• D. $152g$

Answer 1

The correct option is A $160g$

$\left(A\right)$ $160g$

The molecular weight of $CuS{O}_4$ can be calculated by adding up the atomic masses of $Cu$ and $S$ and $4$ times $O$.

As we know, mass of $Cu$ = $63.546$

mass of $S$ = $32.06$

and, mass of $O$ = $16$

Therefore, Molecular weight of $CuS{O}_4$ = $63.546+32.06+4\times 16$

=$159.606g$ = $160g$

So, th molecular weight of $CuS{O}_4$ is $160g$.