The partial pressure of ethane over a solution containing $6.56 × 10^{–3}$ g of ethane is 1 bar. If the solution contains $5.00 ×\times 10^{–2}$ g of ethane, then what shall be the partial pressure of the gas?

Question

$\begin{array}{1 1}0.7621bar\\1.7621bar\\2.7621bar\\3.7621bar\end{array}$