An engineer wants to estimate the mass of gas that is present in a tank. She knows that 1.00 mol of the gas occupies a volume of 24.5 L at the set temperature and pressure. If the volume of the tank is 170.0 L and the molecular weight of the gas is 32.00 g/mol, what is the mass of gas in the tank?

130 g

222 g

784 g

5,440 g

Question

Rylee Key

Mathematics

2 October, 11:35

An engineer wants to estimate the mass of gas that is present in a tank. She knows that 1.00 mol of the gas occupies a volume of 24.5 L at the set temperature and pressure. If the volume of the tank is 170.0 L and the molecular weight of the gas is 32.00 g/mol, what is the mass of gas in the tank?

130 g

222 g

784 g

5,440 g

+3

Answers (2)

Know the Answer?

Jayson Glenn · Answer 1

We are given the values of n as number of moles, V as volume and the molar mass of the gas. In this case, we can use the ideal gas law PV = nRT to solve the problem. n is also equal to m / mm. Substutitng the given, using constant P and Tn/V1 = m / mm / V21/24.5 = m / 32 / 170m = 0.2168 grams

Dakota Cherry · Answer 2

the answer is b. 222g. i just took the quiz