Unit 3 Test (Part 2) Review

Stoichiometry

Balancing Equations

Balance the following chemical equation:

____ Ag2O ____ Ag + ____O2

Balancing Equations

Balance the following chemical equation:

2 Ag2O 4 Ag + O2

Balancing Equations

Balance the following chemical equation:

___ Na + ___ H2O ___ NaOH + ___H2

Balancing Equations

Balance the following chemical equation:

2 Na + 2 H2O 2 NaOH + H2

Balancing Equations

Balance the following chemical equation:

__ AlBr3 + __ K2SO4 __ KBr + __ Al2(SO4)3

Balancing Equations

Balance the following chemical equation:

2 AlBr3 + 3 K2SO4 6 KBr + Al2(SO4)3

Balancing Equations

Balance the following chemical equation:

__ HCN + __ CuSO4 __ H2SO4 + __ Cu(CN)2

Balancing Equations

Balance the following chemical equation:

2 HCN + CuSO4 H2SO4 + Cu(CN)2

Balancing Equations

Balance the following chemical equation:

__ C8H18 + __ O2 __ CO2 + __ H2O

Balancing Equations

Balance the following chemical equation:

2 C8H18 + 25 O2 16 CO2 + 18 H2O

Identifying Reaction Types

Na3PO4 + 3 KOH 3 NaOH + K3PO4

Reaction Type: __________________

Identifying Reaction Types

Na3PO4 + 3 KOH 3 NaOH + K3PO4

Reaction Type: double replacement

Identifying Reaction Types

CaCO3 CaO + CO2

Reaction Type: _________________

Identifying Reaction Types

CaCO3 CaO + CO2

Reaction Type: decomposition

Identifying Reaction Types

C6H12 + 9 O2 6 CO2 + 6 H2O

Reaction Type: _________________

Identifying Reaction Types

C6H12 + 9 O2 6 CO2 + 6 H2O

Reaction Type: combustion

Identifying Reaction Types

2 AgNO3 + Cu Cu(NO3)2 + 2 Ag

Reaction Type: _________________

Identifying Reaction Types

2 AgNO3 + Cu Cu(NO3)2 + 2 Ag

Reaction Type: single replacement

Identifying Reaction Types

2 RbNO3 + BeF2 Be(NO3)2 + 2 RbF

Reaction Type: __________________

Identifying Reaction Types

2 RbNO3 + BeF2 Be(NO3)2 + 2 RbF

Reaction Type: double replacement

Identifying Reaction Types

P4 + 3 O2 2 P2O3

Reaction Type: __________________

Identifying Reaction Types

P4 + 3 O2 2 P2O3

Reaction Type: synthesis

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many moles of carbon dioxide can be produced from 3.37 moles of

oxygen?

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many moles of carbon dioxide can be produced from 3.37 moles of

oxygen?

2.25 mol CO2

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many grams of water can be produced from 0.910 moles of C6H12?

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many grams of water can be produced from 0.910 moles of C6H12?

98.4 g H2O

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many grams of carbon dioxide can be produced from 11.2 grams of C6H12?

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many grams of carbon dioxide can be produced from 11.2 grams of C6H12?

35.1 g CO2

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many molecules of water can be produced from 2.49 moles of oxygen?

Stoichiometry

C6H12 + 9 O2 6 CO2 + 6 H2O

How many molecules of water can be produced from 2.49 moles of oxygen?

9.99 x 1023 molecules H2O

Stoichiometry: Limiting Reactant

SeCl6 + O2 SeO2 + 3 Cl2

How many grams of chlorine can be produced from the reaction of 13.7 grams

of SeCl6 and 13.7 grams of oxygen?

Also, what is the limiting reactant?

Stoichiometry: Limiting Reactant

SeCl6 + O2 SeO2 + 3 Cl2How many grams of chlorine can be produced from the reaction of 13.7 grams of SeCl6 and

13.7 grams of oxygen?

Also, what is the limiting reactant?

9.99 g Cl2

(Limiting reactant = SeCl6)

Stoichiometry: Limiting Reactant

SeCl6 + O2 SeO2 + 3 Cl2

If the actual yield of this reaction was 4.6 grams of chlorine, what is the percent

yield?

Stoichiometry: Limiting Reactant

SeCl6 + O2 SeO2 + 3 Cl2

If the actual yield of this reaction was 4.6 grams of chlorine, what is the percent

yield?

Percent Yield = 46.0%

Stoichiometry: Limiting Reactant

2 AgNO3 + Cu 2 Ag + Cu(NO3)2

How many grams of copper (II) nitrate can be produced from the reaction of 0.203 moles of Cu and 0.450 moles of AgNO3

Also, what is the limiting reactant?

Stoichiometry: Limiting Reactant

2 AgNO3 + Cu 2 Ag + Cu(NO3)2

How many grams of copper (II) nitrate can be produced from the reaction of 0.203 moles of Cu and 0.450 moles of AgNO3

Also, what is the limiting reactant?

42.2 g Cu(NO3)2

Limiting Reactant = AgNO3

Stoichiometry: Limiting Reactant

2 AgNO3 + Cu 2 Ag + Cu(NO3)2

If the actual yield of the reaction was 4.44 grams of copper (II) nitrate, what is the

percent yield?

Stoichiometry: Limiting Reactant

2 AgNO3 + Cu 2 Ag + Cu(NO3)2

If the actual yield of the reaction was 4.44 grams of copper (II) nitrate, what is the

percent yield?

Percent Yield = 10.5% (Yikes!)