A 4.2 mol sample of Kr has a volume of 953 mL. How many moles ofKr are in a 4.90 L sample at the same temperature and pressure?

_______mol

A flexible container at an initial volume of 8.15 L contains8.51 mol of gas. More gas is then added to the container until itreaches a final volume of 11.7 L. Assuming the pressure andtemperature of the gas remain constant, calculate the number ofmoles of gas added to the container.

____________mol

Calculate the volume, in liters, occupied by 1.27 mol of oxygengas at STP.

__________L

If 1.63 moles of an ideal gas has a pressure of 9.31 atm, and avolume of 38.05 L, what is the temperature of the sample?

__________K

A sample of carbon dioxide is contained in a 500.0 mL flask at0.924 atm and 19.9 °C. How many molecules of gas are in thesample?

__________molecules

A mixture of He, Ne, and Ar has a pressure of 11.3 atm at 28.0°C. If the partial pressure of He is 1.39 atm and that of Ar is3.24 atm, what is the partial pressure of Ne?

___________atm

A 8.15-L container holds a mixture of two gases at 27 °C. Thepartial pressures of gas A and gas B, respectively, are 0.446 atmand 0.620 atm. If 0.180 mol of a third gas is added with no changein volume or temperature, what will the total pressure become?

_____________atm