CHEM 1301
SPRING 2002
TEST 3 VERSION 1
1.
What is the correct name for the compound Si3P4?
(A)
(D)
trisilicon tetrapotassium
silicon phosphide
2.
Which of the following compounds would NOT include in its name at least one of the prefixes mono, di, tri and/or tetra?
(A)
S3N2
3.
Given the Lewis structures shown and any others that you should know, which of the following species is not correctly
matched with the description of its molecular shape?
(B)
..
: O..
(A)
(B)
(C)
(D)
(E)
(B)
(E)
CO2
C
:..O :
silicon phosphorus
trisilicon tetraphosphide
(C)
.. ..
..O : ..O
CaH2
..
:O :
S
:..O :
..
..O :
(D)
(C)
trisilicon tetraphosphorous
SCl2
..Cl
: : ..
..
: ..Cl P ..Cl:
: ....Cl ..Cl..:
carbonate is trigonal pyramidal
sulfate is tetrahedral
nitrite is bent
water is bent
phosphorous pentachloride is trigonal bipyramidal
1
(E)
CO
:....O ..N ....O
4.
Which of the following species would be expected to contain the smallest angle at the central atom? (you might need to use the
pictures from the previous question!)
(A)
carbon dioxide
5.
Which atom in each of the following pairs is the less electronegative?
I.
F or O
II.
I or Br
III. C or B
IV. H or B
(A)
(B)
(C)
(D)
(E)
I. F
I. O
I. O
I. O
I. O
II.
II.
II.
II.
II.
Br
Br
I
Br
I
III.
III.
III.
III.
III.
IV.
IV.
IV.
IV.
IV.
6.
Calculate the molar mass of rubidium carbonate (rubidium is Rb)
(A)
340.4 g/mol
7.
When the following equation is balanced, what is the coefficient of C: Ca3(PO4)2(s) + SiO2(s) + C(s) → CaSiO3(s) + CO + P4
(A)
1
8.
When the following equation is balanced using the smallest possible integral coefficients, what is the sum of all of the
coefficients?
Cu + HNO3 → Cu(NO3)2 + NO2 + H2O
(A)
5
(B)
(B)
(B)
(B)
water
255.0 g/mol
2
6
(C)
(C)
(C)
(C)
sulfate
C
C
B
B
B
230.9 g/mol
4
8
(D)
(D)
(D)
(D)
2
nitrite
(E)
phosphorous pentachloride
H
B
H
H
B
113.5 g/mol
6
9
(E)
(E)
(E)
43 g/mol
10
10
9.
Using the equation N2H4 + N2O4 → N2 + H2O. How many moles of N2 will be produced for every 2 moles of N2O4 that react?
(A)
one
10.
The number of atoms in 9.0 g of aluminum is the same as the number of atoms in
(A)
(D)
8.1 g of magnesium.
24.3 g of magnesium.
11.
Calculate the number of oxygen atoms in 146.7 g of sodium sulfate, Na2SO4.
(A)
6.22 × 1023
12.
A 0.200 mole sample of ethene, C2H4, contains how many atoms?
(A)
7.22 x 1022
13.
Titanium oxide, TiO2, reacts with bromine trifluoride to form titanium fluoride, bromine and oxygen as shown in the equation.
How many moles of bromine trifluoride are needed to react with 14.4 mol of titanium oxide? 3 TiO2 + 4 BrF3 → 3 TiF4 + 2
Br2 + 3 O2
(A)
4.80 mol
14.
How many grams of aluminum chloride can one obtain from 18.00 mol of barium chloride according to the equation:
Al2(SO4)3 + 3 BaCl2 → 3 BaSO4 + 2 AlCl3
(A)
3750 g
(B)
(B)
(B)
(B)
(B)
two
(C)
(B)
(E)
1.46 × 1025
1.204 x 1023
7.20 mol
2400 g
three
(D)
18.0 g of magnesium.
12.15 g of magnesium.
(C)
(C)
(C)
(C)
2.49 × 1024
7.22 x 1023
10.8 mol
1602 g
(D)
(D)
(D)
(D)
3
four
(C)
(E)
six
9.0 g of magnesium.
5.83 × 1026
(E)
3.10 × 1024
1.204 x 1024
(E)
7.22 x 1024
14.4 mol
500 g
(E)
(E)
19.2 mol
801 g
15.
A reaction between Na2O and P4O10 forms Na3PO4. How many grams of Na3PO4 will be produced from the reaction of 0.200
mol of Na2O with P4O10?
(A)
21.9 g
16.
According to the reaction C + O2 → CO2, what mass of CO2 will 45 g of carbon produce?
(A)
33 g
17.
What mass of iron(III) sulfide [Fe2S3] is produced from the reaction of 11.6 g of iron(III) nitrate [Fe(NO3)3] with sodium sulfide:
2 Fe(NO3)3 + 3 Na2S → Fe2S3 + 6 NaNO3
(A)
4.99 g
18.
When hydrogen and nitrogen react together, they produce ammonia, NH3. How many grams of nitrogen would be required to
produce 6.02 x 1024 molecules of ammonia?
(A)
6.02 x 1024
19.
What type of reaction only has one product?
(A)
(E)
Combination (synthesis)
Combustion
20.
What type of reaction is 4 H2O + 3 Fe → Fe3O4 + 4 H2
(A)
(E)
Combination (synthesis)
Combustion
(B)
(B)
(B)
32.8 g
(C)
45 g
(C)
6.75 g
(B)
(C)
280
(B)
(B)
43.8 g
(D)
66 g
(D)
9.97 g
(C)
(D)
140
Decomposition
Decomposition
131 g
(E)
132 g
(E)
11.6 g
(D)
(E)
70
12.4 g
165 g
23.2 g
(E)
28
(C)
Single displacement
(D)
Double displacement
(C)
Single displacement
(D)
Double displacement
4
CHEM 1301
SPRING 2002
TEST 3 VERSION 2
1.
Which atom in each of the following pairs is the less electronegative?
I.
F or O
II.
I or Br
III. C or B
IV. H or B
(A)
(B)
(C)
(D)
(E)
I. F
I. O
I. O
I. O
I. O
II.
II.
II.
II.
II.
Br
Br
I
Br
I
III.
III.
III.
III.
III.
IV.
IV.
IV.
IV.
IV.
2.
Calculate the molar mass of rubidium carbonate (rubidium is Rb)
(A)
340.4 g/mol
3.
When the following equation is balanced, what is the coefficient of C: Ca3(PO4)2(s) + SiO2(s) + C(s) → CaSiO3(s) + CO + P4
(A)
1
4.
When the following equation is balanced using the smallest possible integral coefficients, what is the sum of all of the
coefficients?
Cu + HNO3 → Cu(NO3)2 + NO2 + H2O
(A)
5
(B)
(B)
(B)
255.0 g/mol
2
6
(C)
(C)
(C)
C
C
B
B
B
230.9 g/mol
4
8
(D)
(D)
(D)
1
H
B
H
H
B
113.5 g/mol
6
9
(E)
(E)
(E)
43 g/mol
10
10
5.
Using the equation N2H4 + N2O4 → N2 + H2O. How many moles of N2 will be produced for every 2 moles of N2O4 that react?
(A)
one
6.
The number of atoms in 9.0 g of aluminum is the same as the number of atoms in
(A)
(D)
8.1 g of magnesium.
24.3 g of magnesium.
7.
What is the correct name for the compound Si3P4?
(A)
(D)
trisilicon tetrapotassium
silicon phosphide
8.
Which of the following compounds would NOT include in its name at least one of the prefixes mono, di, tri and/or tetra?
(A)
S3N2
9.
A reaction between Na2O and P4O10 forms Na3PO4. How many grams of Na3PO4 will be produced from the reaction of 0.200
mol of Na2O with P4O10?
(A)
21.9 g
10.
According to the reaction C + O2 → CO2, what mass of CO2 will 45 g of carbon produce?
(A)
33 g
(B)
(B)
(B)
(B)
two
(C)
(B)
(E)
CO2
32.8 g
45 g
(B)
(E)
three
(D)
18.0 g of magnesium.
12.15 g of magnesium.
silicon phosphorus
trisilicon tetraphosphide
(C)
(C)
(C)
CaH2
43.8 g
66 g
(D)
(D)
(D)
2
four
(E)
six
(C)
9.0 g of magnesium.
(C)
trisilicon tetraphosphorous
SCl2
131 g
132 g
(E)
(E)
(E)
CO
12.4 g
165 g
11.
Given the Lewis structures shown and any others that you should know, which of the following species is not correctly
matched with the description of its molecular shape?
..
: O..
C
:..O :
.. ..
..O : ..O
..
:O :
S
:..O :
..Cl
:
: ..
..
: ..Cl P ..Cl:
.. :
Cl
: ..
.. Cl..
..
..O :
(A)
(C)
(E)
carbonate is trigonal pyramidal
nitrite is bent
phosphorous pentachloride is trigonal bipyramidal
12.
Which of the following species would be expected to contain the smallest angle at the central atom? (you might need to use the
pictures from the previous question!)
(A)
carbon dioxide
13.
What mass of iron(III) sulfide [Fe2S3] is produced from the reaction of 11.6 g of iron(III) nitrate [Fe(NO3)3] with sodium sulfide:
2 Fe(NO3)3 + 3 Na2S → Fe2S3 + 6 NaNO3
(A)
4.99 g
14.
When hydrogen and nitrogen react together, they produce ammonia, NH3. How many grams of nitrogen would be required to
produce 6.02 x 1024 molecules of ammonia?
(A)
6.02 x 1024
(B)
(B)
water
6.75 g
(B)
(C)
(C)
280
(B)
(D)
:....O ..N ....O
sulfate
9.97 g
(C)
sulfate is tetrahedral
water is bent
(D)
(D)
140
11.6 g
(D)
3
nitrite
(E)
(E)
70
phosphorous pentachloride
23.2 g
(E)
28
15.
What type of reaction only has one product?
(A)
(E)
Combination (synthesis)
Combustion
16.
What type of reaction is 4 H2O + 3 Fe → Fe3O4 + 4 H2
(A)
(E)
Combination (synthesis)
Combustion
17.
Calculate the number of oxygen atoms in 146.7 g of sodium sulfate, Na2SO4.
(A)
6.22 × 1023
18.
A 0.200 mole sample of ethene, C2H4, contains how many atoms?
(A)
7.22 x 1022
19.
Titanium oxide, TiO2, reacts with bromine trifluoride to form titanium fluoride, bromine and oxygen as shown in the equation.
How many moles of bromine trifluoride are needed to react with 14.4 mol of titanium oxide? 3 TiO2 + 4 BrF3 → 3 TiF4 + 2
Br2 + 3 O2
(A)
4.80 mol
20.
How many grams of aluminum chloride can one obtain from 18.00 mol of barium chloride according to the equation:
Al2(SO4)3 + 3 BaCl2 → 3 BaSO4 + 2 AlCl3
(A)
3750 g
(B)
(B)
(B)
(B)
(B)
(B)
1.46 × 1025
1.204 x 1023
7.20 mol
2400 g
Decomposition
Decomposition
(C)
(C)
(C)
(C)
2.49 × 1024
7.22 x 1023
10.8 mol
1602 g
(C)
Single displacement
(D)
Double displacement
(C)
Single displacement
(D)
Double displacement
(D)
(D)
(D)
(D)
4
5.83 × 1026
(E)
3.10 × 1024
1.204 x 1024
(E)
7.22 x 1024
14.4 mol
500 g
(E)
(E)
19.2 mol
801 g
CHEM 1301
SPRING 2002
TEST 3 VERSION 3
1.
The number of atoms in 9.0 g of aluminum is the same as the number of atoms in
(A)
(D)
8.1 g of magnesium.
24.3 g of magnesium.
2.
Calculate the number of oxygen atoms in 146.7 g of sodium sulfate, Na2SO4.
(A)
6.22 × 1023
3.
A 0.200 mole sample of ethene, C2H4, contains how many atoms?
(A)
7.22 x 1022
4.
Titanium oxide, TiO2, reacts with bromine trifluoride to form titanium fluoride, bromine and oxygen as shown in the equation.
How many moles of bromine trifluoride are needed to react with 14.4 mol of titanium oxide? 3 TiO2 + 4 BrF3 → 3 TiF4 + 2
Br2 + 3 O2
(A)
4.80 mol
5.
How many grams of aluminum chloride can one obtain from 18.00 mol of barium chloride according to the equation:
Al2(SO4)3 + 3 BaCl2 → 3 BaSO4 + 2 AlCl3
(A)
3750 g
(B)
(B)
(B)
(B)
(B)
(E)
1.46 × 1025
1.204 x 1023
7.20 mol
2400 g
18.0 g of magnesium.
12.15 g of magnesium.
(C)
(C)
(C)
(C)
2.49 × 1024
7.22 x 1023
10.8 mol
1602 g
(D)
(D)
(D)
(D)
1
(C)
9.0 g of magnesium.
5.83 × 1026
(E)
3.10 × 1024
1.204 x 1024
(E)
7.22 x 1024
14.4 mol
500 g
(E)
(E)
19.2 mol
801 g
6.
A reaction between Na2O and P4O10 forms Na3PO4. How many grams of Na3PO4 will be produced from the reaction of 0.200
mol of Na2O with P4O10?
(A)
21.9 g
7.
According to the reaction C + O2 → CO2, what mass of CO2 will 45 g of carbon produce?
(A)
33 g
8.
What mass of iron(III) sulfide [Fe2S3] is produced from the reaction of 11.6 g of iron(III) nitrate [Fe(NO3)3] with sodium sulfide:
2 Fe(NO3)3 + 3 Na2S → Fe2S3 + 6 NaNO3
(A)
4.99 g
9.
When hydrogen and nitrogen react together, they produce ammonia, NH3. How many grams of nitrogen would be required to
produce 6.02 x 1024 molecules of ammonia?
(A)
6.02 x 1024
10.
What type of reaction only has one product?
(A)
(E)
Combination (synthesis)
Combustion
11.
What type of reaction is 4 H2O + 3 Fe → Fe3O4 + 4 H2
(A)
(E)
Combination (synthesis)
Combustion
(B)
(B)
(B)
32.8 g
(C)
45 g
(C)
6.75 g
(B)
(C)
280
(B)
(B)
43.8 g
(D)
66 g
(D)
9.97 g
(C)
(D)
140
Decomposition
Decomposition
131 g
(E)
132 g
(E)
11.6 g
(D)
(E)
70
12.4 g
165 g
23.2 g
(E)
28
(C)
Single displacement
(D)
Double displacement
(C)
Single displacement
(D)
Double displacement
2
12.
What is the correct name for the compound Si3P4?
(A)
(D)
trisilicon tetrapotassium
silicon phosphide
13.
Which of the following compounds would NOT include in its name at least one of the prefixes mono, di, tri and/or tetra?
(A)
S3N2
14.
Given the Lewis structures shown and any others that you should know, which of the following species is not correctly
matched with the description of its molecular shape?
(B)
..
: O..
(B)
(E)
CO2
C
:..O :
silicon phosphorus
trisilicon tetraphosphide
(C)
.. ..
..O : ..O
CaH2
..
:O :
S
:..O :
..
..O :
(D)
(C)
trisilicon tetraphosphorous
SCl2
(E)
..Cl
: : ..
..
: ..Cl P ..Cl:
.. :
Cl
: ..
.. Cl..
:....O ..N ....O
(A)
(C)
(E)
carbonate is trigonal pyramidal
nitrite is bent
phosphorous pentachloride is trigonal bipyramidal
15.
Which of the following species would be expected to contain the smallest angle at the central atom? (you might need to use the
pictures from the previous question!)
(A)
carbon dioxide
(B)
water
(C)
(B)
(D)
CO
sulfate
sulfate is tetrahedral
water is bent
(D)
3
nitrite
(E)
phosphorous pentachloride
16.
Which atom in each of the following pairs is the less electronegative?
I.
F or O
II.
I or Br
III. C or B
IV. H or B
(A)
(B)
(C)
(D)
(E)
I. F
I. O
I. O
I. O
I. O
II.
II.
II.
II.
II.
Br
Br
I
Br
I
III.
III.
III.
III.
III.
IV.
IV.
IV.
IV.
IV.
17.
Calculate the molar mass of rubidium carbonate (rubidium is Rb)
(A)
340.4 g/mol
18.
When the following equation is balanced, what is the coefficient of C: Ca3(PO4)2(s) + SiO2(s) + C(s) → CaSiO3(s) + CO + P4
(A)
1
19.
When the following equation is balanced using the smallest possible integral coefficients, what is the sum of all of the
coefficients?
Cu + HNO3 → Cu(NO3)2 + NO2 + H2O
(A)
5
20.
Using the equation N2H4 + N2O4 → N2 + H2O. How many moles of N2 will be produced for every 2 moles of N2O4 that react?
(A)
one
(B)
(B)
(B)
(B)
255.0 g/mol
2
6
two
(C)
(C)
(C)
(C)
C
C
B
B
B
230.9 g/mol
4
8
three
(D)
(D)
(D)
(D)
4
H
B
H
H
B
113.5 g/mol
6
9
four
(E)
(E)
(E)
(E)
43 g/mol
10
10
six
CHEM 1301
SPRING 2002
TEST 3 VERSION 4
1.
What type of reaction is 4 H2O + 3 Fe → Fe3O4 + 4 H2
(A)
(E)
Combination (synthesis)
Combustion
2.
A reaction between Na2O and P4O10 forms Na3PO4. How many grams of Na3PO4 will be produced from the reaction of 0.200
mol of Na2O with P4O10?
(A)
21.9 g
3.
According to the reaction C + O2 → CO2, what mass of CO2 will 45 g of carbon produce?
(A)
33 g
4.
What mass of iron(III) sulfide [Fe2S3] is produced from the reaction of 11.6 g of iron(III) nitrate [Fe(NO3)3] with sodium sulfide:
2 Fe(NO3)3 + 3 Na2S → Fe2S3 + 6 NaNO3
(A)
4.99 g
5.
When hydrogen and nitrogen react together, they produce ammonia, NH3. How many grams of nitrogen would be required to
produce 6.02 x 1024 molecules of ammonia?
(A)
6.02 x 1024
(B)
(B)
(B)
(B)
32.8 g
(C)
45 g
(C)
6.75 g
(B)
Decomposition
(C)
280
43.8 g
(D)
66 g
(D)
9.97 g
(C)
(C)
(D)
140
Single displacement
131 g
132 g
(E)
11.6 g
(D)
1
(E)
(E)
70
(D)
Double displacement
12.4 g
165 g
23.2 g
(E)
28
6.
What type of reaction only has one product?
(A)
(E)
Combination (synthesis)
Combustion
7.
Calculate the number of oxygen atoms in 146.7 g of sodium sulfate, Na2SO4.
(A)
6.22 × 1023
8.
A 0.200 mole sample of ethene, C2H4, contains how many atoms?
(A)
7.22 x 1022
9.
Titanium oxide, TiO2, reacts with bromine trifluoride to form titanium fluoride, bromine and oxygen as shown in the equation.
How many moles of bromine trifluoride are needed to react with 14.4 mol of titanium oxide? 3 TiO2 + 4 BrF3 → 3 TiF4 + 2
Br2 + 3 O2
(A)
4.80 mol
10.
How many grams of aluminum chloride can one obtain from 18.00 mol of barium chloride according to the equation:
Al2(SO4)3 + 3 BaCl2 → 3 BaSO4 + 2 AlCl3
(A)
3750 g
11.
The number of atoms in 9.0 g of aluminum is the same as the number of atoms in
(A)
(D)
8.1 g of magnesium.
24.3 g of magnesium.
(B)
(B)
(B)
(B)
(B)
1.46 × 1025
1.204 x 1023
7.20 mol
2400 g
Decomposition
(C)
(C)
(C)
(C)
(B)
(E)
2.49 × 1024
7.22 x 1023
10.8 mol
1602 g
(C)
(D)
(D)
(D)
(D)
18.0 g of magnesium.
12.15 g of magnesium.
2
Single displacement
(D)
5.83 × 1026
(E)
3.10 × 1024
1.204 x 1024
(E)
7.22 x 1024
14.4 mol
500 g
(C)
(E)
(E)
Double displacement
19.2 mol
801 g
9.0 g of magnesium.
12.
Which atom in each of the following pairs is the less electronegative?
I.
F or O
II.
I or Br
III. C or B
IV. H or B
(A)
(B)
(C)
(D)
(E)
I. F
I. O
I. O
I. O
I. O
II.
II.
II.
II.
II.
Br
Br
I
Br
I
III.
III.
III.
III.
III.
IV.
IV.
IV.
IV.
IV.
13.
Calculate the molar mass of rubidium carbonate (rubidium is Rb)
(A)
340.4 g/mol
14.
When the following equation is balanced, what is the coefficient of C: Ca3(PO4)2(s) + SiO2(s) + C(s) → CaSiO3(s) + CO + P4
(A)
1
15.
When the following equation is balanced using the smallest possible integral coefficients, what is the sum of all of the
coefficients?
Cu + HNO3 → Cu(NO3)2 + NO2 + H2O
(A)
5
16.
Using the equation N2H4 + N2O4 → N2 + H2O. How many moles of N2 will be produced for every 2 moles of N2O4 that react?
(A)
one
(B)
(B)
(B)
(B)
255.0 g/mol
2
6
two
(C)
(C)
(C)
(C)
C
C
B
B
B
230.9 g/mol
4
8
three
(D)
(D)
(D)
(D)
3
H
B
H
H
B
113.5 g/mol
6
9
four
(E)
(E)
(E)
(E)
43 g/mol
10
10
six
17.
What is the correct name for the compound Si3P4?
(A)
(D)
trisilicon tetrapotassium
silicon phosphide
18.
Which of the following compounds would NOT include in its name at least one of the prefixes mono, di, tri and/or tetra?
(A)
S3N2
19.
Given the Lewis structures shown and any others that you should know, which of the following species is not correctly
matched with the description of its molecular shape?
(B)
..
: O..
(B)
(E)
CO2
C
:..O :
silicon phosphorus
trisilicon tetraphosphide
(C)
.. ..
..O : ..O
CaH2
..
:O :
S
:..O :
..
..O :
(D)
(C)
trisilicon tetraphosphorous
SCl2
(E)
..Cl
: : ..
..
: ..Cl P ..Cl:
.. :
Cl
: ..
.. Cl..
:....O ..N ....O
(A)
(C)
(E)
carbonate is trigonal pyramidal
nitrite is bent
phosphorous pentachloride is trigonal bipyramidal
20.
Which of the following species would be expected to contain the smallest angle at the central atom? (you might need to use the
pictures from the previous question!)
(A)
carbon dioxide
(B)
water
(C)
(B)
(D)
CO
sulfate
sulfate is tetrahedral
water is bent
(D)
4
nitrite
(E)
phosphorous pentachloride