please help can not get the answers for the life of me

The drive-side airbag deploys when a van is in a head-on collision. The airbag inflates to a volume of 67.8L and a pressure of 1.40 bar at 25.0C. Calculate the mass of NaN3, in grams, that the manufacturer placed into the gas generator to produce this amount of nitrogen gas. Assume the nitrogen gas behaves as an ideal gas and the only source of the nitrogen gas is reaction 1. Refer to the list of physical constants. A certain mass of nitrogen gas occupies a volume of 4.39L at a pressure of 3.82atm. At what pressure will the volume of this sample be 6.77 L? Assume constant temperature and ideal behavior. The pressure of a sample of argon gas is increased from 1.90 bar to 6.74 bar at constant temperature. If the final volume of the sample is 14.7 L. what was its initial volume? Assume ideal behavior. A sealed container holding 0.0255L of an ideal gas at 0.983 atm and 67C is placed into a refrigerator and cooled to 43C with no change in volume. Calculate the final pressure of the gas. P= atm An acrosol can is empty, except for the propellant gas which exerts a pressure of 1.20atm at 23 " C. If the can is thrown into a fire and heated to a temperature of 515C, what will be the pressure inside the hot can? P A student has a 2.69L bottle that contains a mixture of O2,N2, and CO2 with a total pressure of 5.65 bar at 298K. She knows that the mixture contains 0.269molN2 and that the partial pressure of CO2 is 0.372 bar. Calculate the partial pressure of O2. The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically written as PV=nRT where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature Rearrange the equation to solve for P. P= What is the pressure of 0.574 moles of an ideal gas at a temperature of 302.0K and a volume of 6.00L ? The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically written as PV=nRT where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature. Rearrange the equation to solve for n. n How many moles of an ideal gas occupy a volume of 22.6L at a pressure of 1.85atm and a temperature of 302.6K ? The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically writien as PV=nRT where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature. Rearrange the equation to solve for R. R At 246K,1.317mol of an ideal gas occupy a volume of 10.61L and have a pressure of 2.507atm. What is the value of the idea gas constant