2014Grade11JunePracticeTest

Grade 11 Chemistry Year End Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____ 1. The molar mass of copper(II) sulfate pentahydrate, CuSO4.5H2O, is
a.
245.6 g/mol
d.
241.5 g/mol
b.
177.5 g/mol
e.
249.6 g/mol
c.
219.2 g/mol

____ 2. A 100.0-g sample of a compound is composed of 16.3 g of carbon, 32.1 g of chlorine, and
51.6 g of fluorine. The empirical formula of the compound is
a.
CClF
d.
C3Cl2F6
b.
CClF3
e.
C9Cl6F18
c.
C2Cl2F6

____ 3. A compound has a molar mass of 170.0 g/mol and an empirical formula of SiF3. The compound's molecular formula is
a.
SiF3
d.
Si4F12
b.
Si5F15
e.
Si3F9
c.
Si2F6

____ 5. Ammonia is produced from a reaction as shown in the equation H2(g) + 3N2(g) 2NH3(g).
The number of moles of hydrogen required to produce 12 moles of ammonia is
a.
1
d.
8
b.
3
e.
12
c.
6

____ 6. Cola soft drinks have a sucrose concentration of 11g/100mL. What mass of sucrose is present in a 355-mL can of cola?
a.
11g
d.
22 g
b.
39 g
e.
0.11 g
c.
30 g

____ 7. What is the molar volume of 0.1 moles of SiF4 at SATP?
a.
44.8 L
d.
2.24 L
b.
1.0 L
e.
16 L
c.
2.48 L

____ 8. Which of the following compounds are highly soluble in water?
a.
NaCl
d.
Kr
b.
Fe(NO3)3
e.
a, b, and c only
c.
NH4CO3

____ 9. Which of the following contains 1 mol of dissolved copper(II) nitrate?
a.
500 mL of a 0.5 mol/L solution
d.
1 L of a 0.9 mol/L solution
b.
750 mL of a 0.75 mol/L solution
e.
2 L of a 0.4 mol/L solution
c.
500 mL of a 2.0 mol/L solution

____ 10. Which net ionic equation best represents the reaction between silver nitrate and potassium acetate?
a.
2Ag+(aq) + C2H3O2–(aq) ® AgC2H3O2(s)
b.
Au+(aq) + C2H4O2–(aq) ® AgC2H3O2(s)
c.
Ag2+aq) + C2H3O2–(aq) ® AgC2H3O2(s)
d.
Ag+(aq) + C2H3O22–(aq) ® AgC2H3O2(s)
e.
Ag+(aq) + C2H3O2–(aq) ® AgC2H3O2(s)

____ 11. What is the volume of 2.2 grams of Ne gas at STP in litres?
a.
2,48.
d.
2.24.
b.
22,4
e.
1.25
c.
20

____ 12. The constant bombardment