What is the pressure of this gas sample in mm Hg?

Question

1.12 mol sample of carbon dioxide gas at a temperature of 10.0 C is found to occupy a volume of 25.5 liters.

Answer 1

moles = n = 1.12

temperatrue = T = 10.0C + 273 = 283K

volume = V = 25.5 L

R = gas constant = 0.0821 Latm/Kmol

Ideal Gas Law: PV = nRT and to find the pressure, we rearrange and solve for P (pressure) in atmospheres

P = nRT/V

P = (1.12)(0.0821)(283) / 25.5

P = 1.02 atm