1. Mass to volume stoichiometry problems Note handout p. 8
Class Notes 5/11/12
Mass to volume stoichiometry problems
Note handout p. 8

2. Volume Problems Recall the standard molar volume of a gas:22.4 L/mol
This is true only at STP: 1 ATM and 0 degree C
Avogadro’s Law:
Since a mole of any gas occupies the same volume as any other gas, a volume ratio is the same as a mole ratio.
Ex: __1_ N _3__ H2  __2_ NH3
Mole Ratios: 1 mol N2: mole H2: 2 mol NH3
Volume Ratios: 1L N2: 3 L H2: 2 L NH3

3. Mass to Volume - Problem Solving Process

4. Mass to Volume
A piece of magnesium metal with a mass of 2.76 g is added to a solution of Hydrochloric acid. What is the volume of Hydrogen gas produced at STP?