3. Stoichiometry
Concentration Units — Quiz
Test your understanding of concentration units with 5 practice questions.
Practice Questions
Question 1
A solution is prepared by dissolving 25 grams of Na$_2$CO$_3$ (molar mass = 105.99 g/mol) in enough water to make 750 mL of solution. What is the molarity of the solution?
Question 2
You need to prepare 2 liters of a 0.5 M solution of H$_2$SO$_4$ (molar mass = 98.08 g/mol). How many grams of H$_2$SO$_4$ are required?
Question 3
A 500 mL solution contains 0.4 moles of solute. What is the mass concentration of the solution if the molar mass of the solute is 50 g/mol?
Question 4
What volume of a 4 M solution is required to obtain 0.6 moles of solute?
Question 5
A solution has a molarity of 1.2 M and a mass concentration of 180 g/L. What is the molar mass of the solute?