How many grams of ethane gas (C2H6) are in a 12.7 liter sample at 1.6 atmospheres and 24°C? Show all work used to solve this problem.

Question

Alivia Soto

Chemistry

22 February, 21:03

How many grams of ethane gas (C2H6) are in a 12.7 liter sample at 1.6 atmospheres and 24°C? Show all work used to solve this problem.

+2

Answers (1)

Know the Answer?

Alia Peterson · Answer 1

For this problem, we assume that ethane gas is an ideal gas so we can use the ideal gas equation which is expressed as:

PV = nRT

We first find the number of moles using the above equation.

n = PV / RT

n = (1.6 atm) (12.7 L) / (0.08206 L atm/mol K) (24 + 273.15 K)

n = 0.83 mol C2H6

M = 0.83 mol C2H6 (30.08 g / 1 mol) = 2.97 g C2H6