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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define mass per cent.
💡 Hint: Think about the total mass.
Question 2
Easy
What is molarity?
💡 Hint: It relates to volume.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does molarity measure?
- Mass of solute
- Volume of solution
- Moles of solute per liter of solution
💡 Hint: Consider the relationship between moles and volume.
Question 2
True or False: Molality changes with temperature.
- True
- False
💡 Hint: Think about how mass behaves with temperature.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A solution contains 20 g of NaCl dissolved in 500 g of water. Calculate the molality of the solution.
💡 Hint: Convert grams of water to kilograms first.
Question 2
Calculate the final concentration in M of a solution if a 2 M NaOH solution is diluted to 4 liters by adding water. How many liters of the initial solution were used?
💡 Hint: Use the dilution equation to find the original volume.
Challenge and get performance evaluation