Question

How do I do 28-35

28. A sample of gas measures 5.00 liters at 1.00 atm. To change the volume to 3.50 liters at constant temperature, what pressure must be applied? 29. How many moles of by drogen (He) fill a weather balloon whose volume is 250 liters at a pressure of 0.50 atm with a temperature of-10.0 C? 30. What is the pressure of 3.50 moles of helium at -50.0'C in a rigid container whose volume is 25.0 liters? 31. How many moles of oxygen (O) must be placed in a container with a volume of 50.0 liters to produce a pressure of 4.50 atm at standard temperature? 32. If the current pressure for the day is 768.9 torr, find the molar mass of a 210 mL sample of gas weighing 0.49 g collected over water at 22.5 C. Which alkane fuel is it? 33. What is the density of hydrogen gas when it is pressurized to 500 kPa at 27c? 34. What is the density of chlorine gas (Clh) when it is pressurized to 95.0 kPa at 18 'C? 35. What is the density of air at room temperature (20.0 C) and standard pressure if air has an average molar mass will of 28.5 g/mol..

Answer 1

Dete s 500 liteas at Looatm 5:00 3 SoL 43 am bressine must he atplied

eSSu Volum empershuut -10-04-212 263K cho 0 50 X250 25 mol n = . 5:79 mal トーhjdingen is Signal hale o 11 mo