Question 1 of 1

Question 1-17.1

5 points

A sample of 52.0 g of neon gas is placed in a balloon with a volume of 10.3 L at 25.0 °C. If 34.5 g of neon is then added to the balloon at constant temperature and pressure, what would be the new volume of this balloon?

Volume =

L

Your answer is incorrect. Please try again or try a hint.

Hint 1

The gas is in a balloon—a flexible container—so you know that the pressure of the gas is equal to the external pressure. Since the external pressure does not change, the pressure inside the balloon is constant. Also, the temperature is constant. Top of page

Hint 2

What is the Ideal Gas Law? Use the proper capitalization in your answer and do not leave spaces. PV=nRT Good thinking! Top of page

Hint 3

In this case, what quantities in the Ideal Gas Law change? T R n P V Your extra effort will pay off! Top of page

Top of page

Hint 4

Use the Ideal Gas Law to find a relationship between n and V. Top of page

More information on this hint

Use algebra to place the quantities that change on one side of the equation and the ones that remain constant on the other side of the equation. Top of page

Hint 5

Find the initial number of moles of Ne gas. mol Ne = 2.60 mol Good job! Now this should help you solve the problem! Top of page

Hint 6

Find the number of moles of Ne gas after the addition of neon. mol Ne after addition of gas = 4.32 mol Ne Keep on truckin’! Top of page

Hint 7

This problem can also be solved by using Avogadro’s Law. Top of page

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