posted by Jessica12 .
How many moles of gas must be forced into a 3.7L ball to give it a gauge pressure of 8.4psi at 23degrees C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.6psi so that the total pressure in the ball is 23.0psi
Jessica, I think I worked this for you last night at the original post. I can try to find that if you can't locate it.