Given
w = 1.98g
V = 1.47 litre
T = 303 K
P = 744 - 32 = 712mm = $\large\frac{712}{760}$ atm
Since For dry gas , $PV = \large\frac{w}{m}RT$
$=\large\frac{712}{760}\times1.47=\large\frac{1.98}{m}\times0.0821\times303$
$\therefore m = 35.76g$
Hence answer is (c)