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Reactions In Solution II
Test Description: AP Chem Game
Instructions: Answer all questions to get your test result.
1) 0.466 g of an unknown metal chloride is dissolved in water. If the resulting metal ions are completely precipitated by the addition of 22.4 mL of 0.1000 M sodium chromate, the unknown substance is
A
BaCl2
B
AgCl
C
PbCl2
D
NaCl
2) NaOH reacts with FeCl3 to produce a precipitate. If 100 mL of 0.100 M NaOH is added to 100 mL of 0.100 M FeCl3, the concentration of sodium ions in the resulting solution would be
A
0.0500 M
B
0.0333 M
C
0.100 M
D
The same as the concentration of chloride ions
3) How many mL of 0.250 M NaOH would be needed to exactly neutralize 50 mL of 0.100 M H2SO4?
A
10.0 mL
B
50.0 mL
C
40.0 mL
D
25.0 mL
4) What mass of Na2SO4 is required to prepare 400. mL of 1.50 M Na2SO4 solution?
A
71.4 g
B
85.2 g
C
56.8 g
D
213 g
5) In the reaction between sodium carbonate and calcium chloride, the spectator ions are
A
H+ and OH-
B
Na+ and Ca2+
C
Cl- and Na+
D
Carbonate and chloride
6) A 500 mL sample of a 0.350 M solution is left open on a lab counter for weeks, after which the concentration of the solution is 0.955 M. What is the new volume of the solution?
A
223 mL
B
605 mL
C
91.5 mL
D
0.183 L
7) If 450 mL of 0.15 M HCl is mixed with 270 mL of 0.10 M Mg(OH)2 are mixed
A
The solution will be basic
B
The solution will be acid
C
The solution will be neutral
D
A precipitate will form
8) Which reactant is limiting when equal volumes of equal concentrations of strontium nitrate and sodium sulfate are mixed?are
A
Sodium sulfate
B
Both are equivalent stoichiometrically
C
Strotium nitrate
9) 25 mL of 1.5 M solution is diluted to 500 mL. 40 mL of the resulting solution is diluted to 200 mL. What is the final concentration?
A
0.060 M
B
0.030 M
C
0.015 M
D
0.0075 M
10) Which will contain the most ions? (total cations and anions)
A
1 L of 0.2 M CaCl2
B
2 L of 0.2 M (NH4)2CO3
C
0.5 L of 0.2 M Na3PO4
D
2 L of 0.2 M KCl
*select an answer for all questions
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