What is the number of moles of 500 liters of He gas at STP?

A) 0.2 mol

B) 90 mol

C) 0.05 mol

D) 22 mol

Question

Janiyah Grimes

Chemistry

6 March, 05:19

What is the number of moles of 500 liters of He gas at STP?

A) 0.2 mol

B) 90 mol

C) 0.05 mol

D) 22 mol

+3

Answers (1)

Know the Answer?

Taniya Gonzalez · Answer 1

The correct answer is D

Explanation:

Step 1: Data given

Volume of helium = 500 L

STP:

⇒ 25°C = 298 Kelvin

⇒ 1.00 atm

⇒ 22.4 L

This means 1 mole of Helium gas at STP has a volume of of 22.4 L

Since 22.4 L of Helium gas = 1 mol

Then 500 L of helium gas = (500L / 22.4L) * 1 mol = 22.3 mol

The correct answer is D

What is the number of moles of 500 liters of He gas at STP?A) 0.2 molB) 90 molC) 0.05 molD) 22 mol

What is the number of moles of 500 liters of He gas at STP?

A) 0.2 mol

B) 90 mol

C) 0.05 mol

D) 22 mol