A sample of Ne gas has a pressure of 654 mmHg with an unknown volume. The gas has a pressure of 345 mmHg when the volume is 495mL with no change in temperature or amount of gas. What is the initial volume in milliliters of the gas?

The initial volume of Ne gas is 261mL

Explanation:

This question can be answered using Ideal Gas Equation;

However, the following are the given parameters

Initial Pressure = 654mmHg

Finial Pressure = 345mmHg

Final Volume = 495mL

Required

Initial Volume?

The question says that Temperature is constant;

This implies that, we'll make use of Boyle's law ideal gas equation which states;

Where represent the initial pressure

represent the final pressure

represent the initial temperature

represent the final temperature

Substitute these values in the formula above;

Divide both sides by 654

(Approximated)

The initial volume of Ne gas is 261mL