Write all possible mole ratios for the reaction: 2A1,0, ( 4A1+ 30, There are a total of six different ratios, including reciprocals. Make sure each ratio has the correct coefficient and unit
of "moles".

Use the conversions from problem #1, to calculate the following. Make sure to show all units,
conversion factors and the correct number of significant figures.

2. How many moles of aluminum oxide are needed to produce 19.0 moles of oxygen?

3. How many moles of oxygen can be produced from 19.0 moles of aluminum oxide?

4. In order to produce 25.0 moles of aluminum, how many moles of aluminum oxide are
required?

5. How many moles of aluminum oxide are required to produce 97.0 moles of aluminum?