SCH4U Organic Chemistry Grade 11 Review
SOLUTIONS
1. Complete the following chart:
Formula
Atom Lewis Dot
Diagrams
# of Valence
Electrons
Lewis Structure of
Compound
IUPAC Name
Na2S
NBr3
2. Name or determine the formulas for the following:
a. lithium oxide Li2O
i. C2H6 dicarbon hexahydride or ____________***
b. Na2CO3
Sodium carbonate
j.
nickel (II) nitrate
c. carbon tetraflouride CF4
k. NH4OH
d. P2S3
l.
diphosphorous trisulphide
Ni(NO3)2
Ammonium hydroxide
dinitrogen sulfide N2S Bonus****where is the error!
e. HF(aq)
hydrofluoric acid
m. strontium bromate Sr(BrO4)2
f.
HNO3 (aq)
n. yttrium chlorate Y(ClO3)3
g. NiS
Nickel (II) sulphide
o. SO3 sulphur trioxide
h. Ni2(SO4)3
Nickel (III) sulphate
p. Ti(ClO4)3
nitric acid
titanium perchlorate
3. Define electronegativity and explain the trend on the Periodic Table.
EN =
trend: up and right (F the highest EN)
4. Name and explain all of the Intermolecular forces. Use diagrams in your answers:
H-bonding
Dipole-dipole
London dispersion (van der Waals)
5. Use the concepts of intermolecular forces and/or intramolecular bonds to explain why ionic
compounds such as NaCl, MgCl2, and NaNO3 have generally high melting points.
6.
a. Briefly explain what happens to the solubility of an ionic compound like KNO3 with
increasing temperature. What happens for a gas like O2?
In general:
solids ↑ in solubility with ↑ temp
gases ↓ in solubility with ↑ temp
7. Write the balanced equation, total ionic equation, and net ionic equation for the reaction
between aqueous sodium phosphate and aqueous calcium chloride.
2 Na3PO4 (aq) + 3 CaCl2 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq)
6Na1+(aq) + 2PO43-(aq) + 3Ca2+(aq) + 6Cl1-(aq) → Ca3(PO4)2 (s) + 6Na1+(aq) + 6 Cl1-(aq)
2PO43-(aq) + 3Ca2+(aq) → Ca3(PO4)2 (s)
8. Briefly explain what you are looking for in order to classify the following reactions.
Synthesis
Decomposition
Single Displacement
Double Displacement
Combustion of a
Hydrocarbon
9. Four factors affect the rate of a chemical reaction. Identify each factor and explain how/why
they each specifically affect the rate of a reaction.
Temp
Catalyst
SA
Conc
***Collision theory – more effective collisions means faster reaction
10. Develop the complete combustion reaction for butane. (C4H10).
2C4H10 (l) + 13O2 (g) → 8 CO2 (g) + 10 H2O(g)
b. Butane is the fuel source in lighters. The combustion of butane is rarely a complete reaction.
Explain this observation, and identify two other potential products for this reaction.
CO & C