Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of ammonia has a volume of 3.7 L.

Question

Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of ammonia has a volume of 3.7 L.

In three to five sentences, explain how you can find the mass of the ammonia. Then, given , R=(0.0821L . atm)/(mol. k) calculate the mass.

PV=nRT n 1 mole= 17 grams…….multiply the number of moles by 17

Answer 1

To find the mass of the ammonia, you first need to calculate the number of moles present in the sample using the ideal gas law equation, PV = nRT. Once you have found the number of moles, you can then convert this to mass by multiplying the number of moles by the molar mass of ammonia, which is 17 grams per mole. Given R = 0.0821 L.atm/mol.K, you can use this value along with the known variables to calculate the mass of the ammonia sample. By plugging in the values into the formula, you can find the mass of the ammonia gas in the given conditions.