# File

```Solutions Review
Show Down
How to Show Down
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•
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Each person gets a white board and marker
Showdown Captain calls “Showdown” when
• Captain checks answer; discussion if needed
• Team celebrates!
• Rotate Showdown Captain Job
1
Identify these as soluble or insoluble in water:
A) Hg2(NO3)2
B)BaSO4
C)AlPO4
D)AgCl
2
How much water must be added to a 6.4 M
stock sodium sulfate solution to make 200.00 mL
of a 0.30 M solution?
3
A student measures 1.85 grams of sodium
chloride and dissolves them into a 50.00 mL
volumetric flask. What is the molarity of the
solution?
4
Calculate the pH and pOH of a 4.5 M HNO3
solution.
5
What is the concentration of hydrogen ions([H+])
in 0.010 M magnesium hydroxide ?
6
1. What happens to the
solubility of most solids as
the temperature
increases?
A. solubility remains the
same
B. solubility increases
C. solubility decreases
2. Calculate the volume of a
using 10.42 moles of
lithium nitrate.
A. 0.0484 L
B. 41.7 L
C. 3.63x10-3 L
D. 276 L
E. 2.61 L
3. Which of the following must
be measured in order to
calculate the molar
concentration of a solution?
I. The mass of the solute
II. The mass of the solvent
III. The volume of the solution
IV. The volume of the solvent
A.
B.
C.
D.
I and III
I and IV
II and III
II and IV
7
All of the following statements about solutions are
correct EXCEPT:
A.
B.
C.
D.
E.
The solvent is the component that does the dissolving
The solute is the component that gets dissolved
A solution is a heterogeneous mixture
An unsaturated solution can dissolve more solute
A saturated solution has the maximum amount of solute
dissolved in the solvent
8
1. What does it mean when an acid or base is
described as strong? Concentrated? Dilute?
2. List the strong acids. Which bases are strong?
9
Identify these as soluble or insoluble in water:
A) NH4C2H3O2 B)CuOH C)CaCO3 D)K2SO3
Answers 1-7 (8-9 0n next slide)
1.
2.
3.
4.
5.
6.
7.
S, I, I, I
190 mL
0.633 M
pH= -0.653, pOH= 14.653
5.00 E -13 M
B, B, A
C