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Unit 12 Test Review
By Kristina Thibodeaux
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9 questions
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Question 4
4.
How many moles of NaCl are needed to prepare a 10.0 L solution with a molarity of 4.3 M?
0.43 moles
2.3 moles
230 moles
43 moles
Question 5
5.
If 100mL of water is added to 300 mL of acid that has a molarity of 2.0M, what is the concentration of the new mixture ?
6 M
3 M
1.5 M
2.5 M
Question 6
6.
Which of the following shows correct dissociation equation for K
2
SO
4
?
K
2
SO
4
(aq) -> K
+
(aq) + SO
4
2-
(aq)
2K
2
SO
4
(aq) -> 4K
+
(aq) + 2SO
4
2
-(aq)
K
2
SO
4
(aq) -> 2K
+
(aq) + SO
4
2-
(aq)
K
2
SO
4
(aq) -> 2K
+
(aq) + 2SO
4
2-
(aq)
Question 7
7.
Determine the iodine ion concentration in 2.0M KI solution.
0.5 M
1 M
2 M
1.5 M
Question 8
8.
What is the net ionic equation when aqueous solutions of
silver nitrate (AgNO₃)
and
sodium chloride (NaCl)
are mixed.
Na
+
(aq) + NO
3
+
(aq) = NaNO
3
(s)
Na
+
(aq)+ Cl
+
(aq) = NaCl (s)
Ag
+
(aq) + NO
3
+
(aq) = AgNO
3
(s)
Ag
+
(aq) + Cl
+
(aq) = AgCl (s)
Question 9
9.
What is the total ion concentration in a 0.025 M solution of Ca(NO₃)₂?
0.025 M
0.05 M
0.075 M
0.0375 M
Question 1
1.
How much KCl must be dissolved in 100 g of water at 40C to create a saturated solution?
60
25
40
80
Question 2
2.
Dissolving 60 g of HCl into 100 g of water at 40C will yield what type of solution?
saturated
unsaturated
supersaturated
Question 3
3.
Which compounds solubility is least affected by temperature changes?
NaCl
KClO
3
KNO
3
KI
