A 1.00 liter sample of H2 gas is collected at 25.0°C and 202.6 kPa. What volume does this sample occupy at STP

The answer to your question is 2 liters

Explanation:

Data

Volume 1 = 1 l Volume 2 = ?

Temperature 1 = 25°C Temperature 2 = 25°C

Pressure 1 = 202.6 kPa Pressure 2 = 101.3 kPa

Process

As Temperature 1 is equal to temperature 2 we can use Boyle's law to solve this problem.

Pressure 1 x Volume 1 = Pressure 2 x Volume 2

-Solve for Volume 2

Volume 2 = Pressure 1 x Volume 1 / Pressure 2

-Substitution

Volume 2 = (202.6 kPa x 1) / 101.3

-Simplification

Volume 2 = 202.6 / 101.3

-Result

Volume 2 = 2 l