Practice ProblemHow many moles of aluminum oxide will be produced from 0.50 mol of oxygen?

4 Al + 3 O2 → 2 Al2O3

0.50 mol ? mol

3 O2 = 2 Al2O3

0.50 mol O2 ? mol Al2O3

= 0.33 mol Al2O3

How many moles of aluminum hydroxide are required to produce 22.0 mol of water?

2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O

Practice Problem

? mol 22.0 mol

2 Al(OH)3 6 H2O

= 1 3

= ? mol Al(OH)3 22.0 mol H2O

= 7.33 mol Al(OH)3

How many moles of potassium chloride canbe produced from 100.0 g of potassium chlorate?

Practice Problem

2 KClO3 → 2 KCl + 3 O2

? mol 100.0g

2 mol KClO3 = 1 mol KClO3 2 mol KCl 1 mol KCl

100.0 g KClO3 1mol = 0.8157 mol KClO3

122.6 g

= 0.8157 mol KCl

How many grams of silver nitrate are requiredto produce 0.25 mol of silver sulfide?

2 AgNO3 + H2S → Ag2S + 2 HNO3

Practice Problem

? g 0.25 mol

0.25 mol Ag2S 2 mol AgNO3 =1 mol Ag2S

0.50 mol

0.50 mol AgNO3 169.9 g = 85 g AgNO3

1 mol

Read Sect. 11.1 pgs 368-372

Do Problems: 1 pg 3713 pg 372

44,46,48,50,52 pg 392