at 25⁰ C and 730 mm pressure, 730 ml of dry oxygen was collected. if the temperature is kept constant what volume will oxygen gas occupy at 760 mm pressure?

Dear user,
The numerical will be solved by Boyle's Law which says :
At constant temperature,for a fixed mass of gas,volume is inversely proportional to pressure.
PV=constant
Formula used :
P₁V₁=P₂V₂
Here,P₁=730mm
         P₂=760mm
​         V₁=730ml
​         V₂=?
$$\begin{gathered} {\mathrm{V}}_2=\frac{{\mathrm{P}}_1{\mathrm{V}}_1}{{\mathrm{P}}_2} \\ =\frac{730\times 730}{760} \\ =\frac{532900}{760} \\ =701.18\mathrm{ml} \end{gathered}$$