154k views
4 votes
How many moles of a gas sample are in a 5.0 L container at 373 K and 203 kPa?

0.33 mole

0.66 mole

1.11 moles

3.05 moles

2 Answers

5 votes

Answer:

0.33 mole

Step-by-step explanation:

User Wendigo
by
8.0k points
6 votes

Answer:

0.33 moles.

Step-by-step explanation:

Assuming the gas is ideal, we can solve this problem by using the following formula:

  • PV = nRT

Where:

  • P = 203 kPa
  • V = 5.0 L
  • n = ?
  • R = 8.314 kPa·L·mol⁻¹·K⁻¹
  • T = 373 K

We input the data:

  • 203 kPa * 5.0 L = n * 8.314 kPa·L·mol⁻¹·K⁻¹ * 373 K
  • n = 0.327 mol

The answer is thus the first option, 0.33 moles.

User Geovani Martinez
by
8.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.