52. During estimation of nitrogen present in an organ compound by Kjeldahl's method, the ammon evolved from \( 0.73 g \) of the compound neutraliz \( 100 mL \) of \( 0.5 M H _{2} SO _{4} \). If \( 0.73 g \) of this organ compound is used in Duma's method, then \( x \) of nitrogen\( \left( N _{2}\right) \) is collected at \( 300 K \) and \( 623 m \) of \( Hg \) pressure. The value of \( x / 30 \) is (Aqueous tension at \( 300 K \) is \( 15 mm \) an \( \left.R=\frac{0.08 atm L}{m o l K}\right) \)