How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of
Given that the final volume was
?

Question

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of 
Given that the final volume was 
?

Quizplus · Accepted Answer

We can use the ideal gas law to solve this problem:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles of gas, R is the universal gas constant, and T is the temperature.
Assuming that the pressure and temperature are constant, we can write:
n1/V1 = n2/V2
where n1 = 2.3 moles and V1 = 11ea8a6b_bbbb_75f9_9ee3_87cb4330cf2b_TB6109_11 and V2 = 11ea8a6b_bbbb_75fa_9ee3_5d33c7d54c19_TB6109_11
Solving for n2, we get:
n2 = n1 x V2/V1
n2 = 2.3 x 11ea8a6b_bbbb_75fa_9ee3_5d33c7d54c19_TB6109_11/11ea8a6b_bbbb_75f9_9ee3_87cb4330cf2b_TB6109_11
n2 = 9.5 moles
Therefore, 9.5 - 2.3 = 7.2 moles of gas were added to the balloon. Answer: A)

How Many Moles of Gas Were Added to a Balloon