Recent content by cricket0140

Oh, sorry, I did mean 746 balloons. So in my second post I calculated there to be 3.07mol left in the container when the pressures were the same. However, when I convert this to how many balloons I'm missing out on (3.07 / 0.556) I get 5.52. And 746 - 5.52 = 740. Which is still wrong. On the...

Okay, so I tried to calculate how many moles would be left in the cylinder when the pressure in the cylinder is down to 1.85x105Pa. So n=pV/RT = (1.85x105 x (4x104/1003)) / 8.3 x 290 But this gives 3.07 instead of 5. I think I'm assuming that the volume will stay constant, which I believe to be...

Homework Statement :[/B] A gas cylinder contains 4.00x104cm3 of hydrogen at a pressure of 2.50x107Pa and a temperature of 290 K. The cylinder is to be used to fill balloons. Each balloon, when filled, contains 7.24x103cm3 of hydrogen at a pressure of 1.85x105Pa and a temperature of 290K...