Posted October 10th, 2010
by admin
OrchidPrincess asked: A sample of gas at temperature of 25.0 degrees C has a pressure of 815 torr and occupies a volume of 9.92L. Use Boyles Law to calculate the new pressure if the temperature is held constant and the volume is decreased to 5.92L. I just want to know if I change 815 torr to atm before solving the problem.
Tags: Boyles Law, Gas Law Problem, Torr To Atm
Posted in Chemistry | 2 Comments »
Posted October 10th, 2010
by admin
a person asked: the problem says this:
a sample of helium gas at 18 celcius and 760mmhg has a vol. of 2.67 ml. What’s the vol. at 0c and 1 atm of pressure?
I’m following the formula vf=vi * tf/ti but it keeps coming out wrong. How would you solve it?
Tags: Atm, Celcius, Gas Law Problem
Posted in Chemistry | 1 Comment »
Posted September 16th, 2010
by admin
Cate asked: Newly devised automobile batteries are sealed. When lead storage batteries discharge, they produce hydrogen. Suppose the void volume in the battery is 100 mL at 1 atm of pressure and 25 degrees C. What would be the pressure increase if 0.05 g H2 were produced by the discharge of the battery? Does this present a problem?
I know you used PV = nRT somehow, but I’m not sure how to arrive at a pressure increase?
Tags: Automobile Batteries, Ideal Gas Law, Storage Batteries
Posted in Chemistry | 1 Comment »
Posted September 16th, 2010
by admin
tersay227 asked: Can you show me the steps as well to how to solve this problem?
What is the pressure in atmosphere exerted by a 0.500 mole sample of nitrogen gas in a 10.0L container at 25.0 degrees Celsius?
Tags: 0l, Atmosphere, Ideal Gas Law
Posted in Chemistry | 2 Comments »
Posted September 16th, 2010
by admin
late.dawns asked: The nitrogen in a 30 L container at 740 torr and 55 degrees Celsius and the hydrogen in a 20 L container at 650 torr and 15 degrees Celsius are pumped into a 25 L container at 32 degrees Celsius. What is the final pressure?
Thanks in advance..Please explain the procedures to solving the problem as I am already aware of what the answer is!
Tags: Degrees Celsius, Gas Law Problem, Hydrogen
Posted in Chemistry | 1 Comment »
