Two Moles of an Ideal Gas with a Volume of 4.00

Multiple Choice

Two moles of an ideal gas with a volume of 4.00 liters and a temperature of 0°C are mixed with one mole of an ideal gas with a volume of 3.00 liters and a temperature of 100°C. The volume of the mixture is 5.00 liters. What is the number density of the mixture?

A) 1.98 × 10²⁶ m^-3
B) 2.02 × 10²⁶ m^-3
C) 2.56 × 10²⁶ m^-3
D) 3.61 × 10²⁶ m^-3
E) 4.00 × 10²⁶ m^-3