Calculate the mass percentage of aspirin ($C_9H_8O_4$) in acetonitrile ($CH_3CN$) when 6.5 g of $C_9H_8O_4$ is dissolved in 450 g of $CH_3CN$.

Question

$\begin{array}{1 1}1.424\%\\1.324\%\\1.224\%\\1.624\%\end{array}$