A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant.

3.9 liters

5.3 liters

6.3 liters

6.5 liters

6.5 L

Explanation:

Given: 0.80 mol in 4.5 L

Find: x liters containing (0.80 mol + 0.35 mol)

Solve: 0.80 mol/4.5 L = (0.80 mol + 0.35 mol) / x

0.80 mol / 4.5 L = (1.15 mol) / x

x = (1.15 mol) (4.5L) / (0.80 mol)

x = 6.47 L = 6.5 L

6.5 liters will be your answer