Question

What is the mass percentage of carbon tetrachloride if $22\, g$ of benzene is dissolved in $122 \,g$ of carbon tetrachloride?

• A. $84.72\%$
• B. $15.28\%$
• C. $50\%$
• D. $44\%$

Answer 1

Answer: (A)

$84.72\%$

Answer 2

Mass of solution = Mass of $C_6H_6 +$ Mass of $CCl_4$ $= 22 + 122 = 144\, g$ Mass $\%$ of $CCl_4 =$ $\frac{122}{144} \times 100 = 84.72\%$