What is the pressure of the sample?

Question

A student has a sample of 1.66 moles of fluorine gas that is contained in a 27.7 L container at 297 K. What is the pressure of the sample? The ideal gas constant is 0.0821 L*atm/mol*K. Round your answer to the nearest 0.01 and include units.

Answer 1

Ideal gas law: PV = nRT

P = pressure = ?

V = volume in liters = 27.7 L

n = mols of gas = 1.66 mols

R = gas constant = 0.0821 L-atm/mol-K

T = temperature in Kelvin = 297K

Solving for P we have ..

P = nRT / V = (1.66)(0.0821)(297) / 27.7

P = 1.46 atm (3 sig. figs.)