Question

A balloon filled with H2(g) at STP has a volume of 2.24 . What is the final gas volume if 0.10mol He(g) is added to the balloon and the temperature is then raised to 82.0 degrees Celsius while the pressure and amount of gas are held constant?

I keep getting 2.9L but it's incorrect
I don't think I understand the question

Answer 1

what is the correct answer?

Answer 2

5.8L

Answer 3

i get 5.83L

Answer 4

u just need to find number of mol for H2 at stp and then u add it with 0.1 mol..then calculate the volume like usual