EXERCISE 14-1 Equilibrium Expressions, Le Chatelier's Principle
Click on the correct answer
1
Choose the correct equilibrium expression for:
2 NO
2
(g) = N
2
O
4
(g)
[NO
2
]
2
[N
2
O
4
]/[NO
2
]
2
[NO
2
]
2
/[N
2
O
4
]
None of the previous answers.
2
Choose the correct equilibrium expression for:
N
2
(g) + O
2
(g) = 2 NO(g)
[NO]
2
/[N
2
][ O
2
]
[NO]/[N
2
][ O
2
]
[N
2
][ O
2
]/[NO]
2
None of the previous answers.
3
Choose the correct equilibrium expression for:
HF(aq) = H
+
+ F
-
[HF]/[ H
+
][F
-
]
[HF]
[ H
+
][F
-
]/[HF]
None of the previous answers.
4
Choose the correct hydrolysis equilibrium expression for:
CN
-
+ H
2
O(l) = HCN(aq) + OH
-
[HCN][OH
-
]/[CN
-
]
[CN
-
][H
2
O]
[CN
-
]/[HCN][OH
-
]
[HCN][OH
-
]/[CN
-
][[H
2
O]
None of the previous answers.
5
Choose the correct solubility product equilibrium expression for:
CaCO
3
(s) = Ca
2+
+ CO
3
2-
[Ca
2+
][CO
3
2-
]/[CaCO
3
]
[Ca
2+
][CO
3
2-
]
[CaCO
3
]
None of the previous answers.
6
HF(aq) = H
+
+ F
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if HCl is added to the system?
left
right
no shift
None of the previous answers.
7
HF(aq) = H
+
+ F
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if NaF is added to the system?
left
right
no shift
None of the previous answers.
8
HF(aq) = H
+
+ F
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if NaOH is added to the system?
left
right
no shift
None of the previous answers.
9
CN
-
+ H
2
O(l) = HCN(aq) + OH
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if NaOH is added to the system?
left
right
no shift
None of the previous answers.
10
CN
-
+ H
2
O(l) = HCN(aq) + OH
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if NaCN is added to the system?
left
right
no shift
None of the previous answers.
11
CN
-
+ H
2
O(l) = HCN(aq) + OH
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if HCl is added to the system?
left
right
no shift
None of the previous answers.
12
CN
-
+ H
2
O(l) = HCN(aq) + OH
-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if water is added to the system?
left
right
no shift
None of the previous answers.
13
CaCO
3
(s) = Ca
2+
+ CO
3
2-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if sodium carbonate is added to the system?
left
right
no shift
None of the previous answers.
14
CaCO
3
(s) = Ca
2+
+ CO
3
2-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if calcium carbonate is added to the system?
left
right
no shift
None of the previous answers.
15
CaCO
3
(s) = Ca
2+
+ CO
3
2-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if calcium nitrate is added to the system?
left
right
no shift
None of the previous answers.
16
CaCO
3
(s) = Ca
2+
+ CO
3
2-
Assume the above system is at equilibrium. In which direction will the system shift to reachieve equiibrium if HCl is added to the system?
left
right
no shift
None of the previous answers.