Chapter 4 Test Review
Quiz
•
Chemistry
•
12th Grade
•
Medium
Misty Thompson
Used 2+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many moles of NaCl are present in 125 mL of solution with a molarity of 8.59 M?
1074 mol
0.069 mol
1.07 mol
62.7 mol
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the molarity of 4 grams of NaCl in 3800 mL of solution? The molar mass of NaCl is 58.44 g/mol.
0.018 M
0.0011 M
1.052 M
0.062 M
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many grams of calcium hydroxide are needed to produce 500. mL of 1.66 M Ca(OH)2 solution? The molar mass of Ca(OH)2 is 74.093 g/mol.
38.7 g
61.5 g
94.0 g
19.7 g
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many grams of solute are dissolved in 125.0 mL of 5.000 M NaCl?
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
18.26 mL of a 1.50 M hydrochloric acid reacts with magnesium hydroxide. Calculate the moles of magnesium hydroxide needed for the reaction.
Mg(OH)2(s) + 2 HCl(aq) --> 2 H2O(l) + MgCl2(aq)
0.0274 moles Mg(OH)2
0.0137 moles Mg(OH)2
0.799 moles Mg(OH)2
1.07 moles Mg(OH)2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
HCl(aq) + NaOH(aq) --> H2O(l) + NaCl(aq)
25 mL of 1M HCl is required to react completely with with 20. mL of NaOH solution. What is the concentration of the NaOH solution?
Hint: determine first the moles of HCl that react.
0.8 M
1 M
1.25 M
1.5 M
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ca(OH)2(aq) + 2 HCl(aq) --> CaCl2(aq) + 2 H2O(l)
A 50.0 mL sample of 1.0 M Ca(OH)2 is required to react completely with 50.0 mL of HCl solution. Calculate the molarity of the HCl solution.
Hint: determine first the number of moles of Ca(OH)2 that react.
1.0 M
0.50 M
2.0 M
4.0 M
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