3.2 Practice problem answers
Keya Jani
Solutions
a) 2 mol gas
b) 1 mol gas
5.5 mol of gas X, 1.0 mol of gas B and 3.5 mol of gas A
a) 5.5 L of X, 1.0 L of B and 2.5 L of A
b) 5.5 kPa of X, 1.0 kPa of gas B, 2.5 kPa of gas A
Using Boyle’s Law, we can calculate the partial pressure of each gas in the new container, which has a combined volume of 5 L.
. For , .
For , .
By Dalton’s Law, the total pressure is the sum of the partial pressures, or 220 torr. By comparing the ratio of the pressure of to the total pressure, we can obtain the mole fraction of : .