Needif the volume of a balloon is compressed to 1/3 of its original volume, what will be the new pressure? a 12.2 l metal tank at stp contains three gases: oxygen, helium, and nitrogen. if the partial pressures of the three gases in the tank are 35.0 atm of o2, 5.0 atm of n2, and 25.0 atm of he, how many moles of each gas are present inside of the tank? a rigid container with a volume of 5.60 l holds 71.0 g cl2 gas (mm = 70.906 g/mol) and 4.00 g he gas (mm = 4.0026 g/mol). if the total pressure is 760 mm hg what is the partial pressure of both gases? if the moles in a balloon are quadrupled, multiplied by 4, what will happen to the volume of the balloon? 150 ml of oxygen is collected over water at 19.0oc and 0.95 atm. if the dry volume becomes 100 ml and the pressure becomes 1.00 atm, what will be the new temperature?