1. What volume of hydrogen at STP would be produced by the action of excess dilute sulfuric acid in 40.0 grams Zn? 2. What volume of oxygen in liters at STP would be required for the combustion of...

Solve the following and show solution. Please answer question #1,#2,#3. No need to explain the process. Please take note of the direction. Thank you


Extracted text: 1. What volume of hydrogen at STP would be produced by the action of excess dilute sulfuric acid in 40.0 grams Zn? 2. What volume of oxygen in liters at STP would be required for the combustion of 17.0 grams PH3? 3. A cylinder contains 36.0 grams he gas, 140.0 grams N2 gas and 264.0 grams CO2.Compute the mole fraction of helium. The total pressure of the cylinder is given as 15.0 atm. Compute the partial pressure of the gas in atm.