The pressure of a sample of helium is 2.0 atm in a 200-mL container. If the container is compressed to 10 mL without changing the temperature, what is the new pressure? a. 200 atm b. 0.10 atm c. 100 atm d. ...

a. the number of grams of each substance. c. molar volume. b. volume. d. density.

In the ideal gas law, what is the value that must be calculated from other measurements? a. P b. V c. T d. R