Question

A sample of gas has a volume of 425 mL at 25°C and 760 torr. What volume would this gas sample have at STP?

Answer 1

`V_2=389mL`

Explanation:

At STP: P=760 torr and T=273K.

To solve this question, we could use Charles' law since both the number of mole and pressure are constant:

`(V_1)/(T_1)=(V_2)/(T_2)`

`=>V_2=T_2xx(V_1)/(T_1)`

`=>V_2=273 cancel(K)xx(425mL)/(298cancel(K))=389mL`