1. Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 C, the total pressure in the container is 3.70atm . Calculate the partial pressure of each gas in the container.
2. A gaseous mixture of O2 and N2contains 34.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 565mmHg?