The density of a gas at 675 mm pressure is `45gL^(-1)`. What is the density of the gas at 750mm pressure at the same temperature?

Explanation

Given `P_(1) = 675` mm , `d_(1) = 45 , P_(2) = 750` mm
According to Boyle.s law `P prop (1)/(V)` [ at constant temperature]
Density , `d = (m)/(V) or d prop (1)/(V) or P prop d ` [ when m is constant ]
> `(P_(1))/(d_(1)) = (P_(2))/(d_(2)) implies d_(2) = (P_(2) xx d_(1))/(P_(1)) = (750 mm xx 45)/(675 mm) = 50 g L^(-1)`