Radon, a radioactive gas formed naturally in the soil, can cause lung cancer. It can pose a hazard to humans seeping into houses, and there is concern about this problem in many areas. A 1.5 mol sample of radon gas has a volume of 21.0 L at 33°C. What is the pressure of the gas?

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.