What pressure will 14.0 g of CO exert in a 3.5 L container at 75°C?
A) 4.1 atm
B) 5.0 atm
C) 6.4 atm
D) 1.1 atm
E) 2.3 atm

Question

Quizplus · Accepted Answer

To solve this, use the ideal gas law: PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/(mol·K)), and T is temperature in Kelvin. First, convert 75°C to Kelvin (75 + 273 = 348 K) and the mass of CO (carbon monoxide) to moles (14.0 g / 28.01 g/mol = 0.5 mol). Then, solve for P: P = (nRT)/V = (0.5 mol * 0.0821 L·atm/(mol·K) * 348 K) / 3.5 L ≈ 4.1 atm.

What Pressure Will 14