Question

If the pressure of 50.0mL of oxygen gas at 100 ºC increases from 735mmHg to 925mmHg, what is the final volume

Answer 1

Given :

The pressure of 50.0 mL of oxygen gas at 100 ºC increases from 735 mm Hg to 925 mm Hg.

Temperature remains constant.

To Find :

The final volume.

Solution :

735 mm Hg = 0.967 atm

935 mm Hg = 1.230 atm

We know, at constant temperature :

$P_iV_i=P_fV_f\\\\V_f=\dfrac{P_iV_i}{P_f}\\\\V_f=\dfrac{0.967\times 50}{1.230}\\\\V_f=39.31 \ mL$

Therefore, final volume is 39.31 ml.

Hence, this is the required solution.