Concentration and Molarity Test Questions

Chemistry Test Questions

Concentration is the amount of a substance in a predefined volume of space. The basic measurement of concentration in chemistry is molarity, or theĀ number of moles of solute per liter of solvent. This collection of ten chemistry test questions deals with molarity.

Answers appear after the final question. A periodic table may be required to complete the questions.

Question 1

Concentration is how much substance is dissolved in a volume.
Concentration is how much substance is dissolved in a volume. Medioimages/Photodisc/Getty Images

What is the molarity of a solution containing 9.478 grams of RuCl3 in enough water to make 1.00 L of solution?

Question 2

What is the molarity of a solution containing 5.035 grams of FeCl3 in enough water to make 500 mL of solution?

Question 3

What is the molarity of a solution containing 72.9 grams of HCl in enough water to make 500 mL of solution?

Question 4

What is the molarity of a solution containing 11.522 grams of KOH in enough water to make 350 mL of solution?

Question 5

What is the molarity of a solution containing 72.06 grams of BaCl2 in enough water to make 800 mL of solution?

Question 6

How many grams of NaCl are required to prepare 100 mL of a solution of 1 M NaCl?

Question 7

How many grams of KMnO4 are required to prepare 1.0 L of a solution of 1.5 M KMNO4?

Question 8

How many grams of HNO3 are required to prepare 500 mL of a 0.601 M HNO3 solution?

Question 9

What is the volume of a 0.1 M HCl solution containing 1.46 grams of HCl?

Question 10

What is the volume of a 0.2 M AgNO3 solution containing 8.5 grams of AgNO3?

Answers

1. 0.0456 M
2. 0.062 M
3. 4.0 M
4. 0.586 M
5. 0.433 M
6. 5.844 grams of NaCl
7. 237 grams of KMnO4
8. 18.92 grams of HNO3
9. 0.400 L or 400 mL
10. 0.25 L or 250 mL

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