Question

At ${25}^{\circ }C$ 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?

• A. 701 $mL$
• B. 449 $mL$
• C. 569 $mL$
• D. 621 $mL$

Answer 1

The correct option is A 701 $mL$

$P_1=730mm$
$V_1=730mL$
$V_2=?$
$P_2=760mm$
$\therefore P_1{V}_1=P_2{V}_2$
$\therefore V_2=\frac{P_1{V}_1}{P_2}=\frac{730\times 730}{760}=701mL$