Question

How much copper is present in 50 g of $CuSO_{4}$?

• A. $19.90g$
• B. $39.81g$
• C. $63.5g$
• D. $31.71g$

Answer 1

Answer: (A)

$19.90g$

Answer 2

(1) : Molar mass of $CuSO_{4}$

=$63.5 + 32 + 4 \times 16159.5g$

Mass of copper present in $159.5g$of $CuSO_{4}$=63.5g

$\therefore$Mass of copper present in 50 g of $CuSO_{4}$

$= \frac{63.5}{159.5} \times 50$

=19.90 g