Practice - Expressing Concentration of Solutions
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is mass percentage?
💡 Hint: Think about how much solute is compared to the total.
Explain what ppm stands for.
💡 Hint: Consider how many parts of solute are in a million parts of solution.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating mass percentage?
💡 Hint: Look for the option that discusses mass.
True or False: Molarity can change with temperature.
💡 Hint: Consider how heating a liquid might affect its volume.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A 75 g mass of glucose is dissolved in enough water to make 500 mL of solution. Calculate the molarity and molality of this solution.
💡 Hint: Convert mL of water to kg for molality.
Using Raoult's Law, if the vapor pressure of pure solvent (A) is 100 mm Hg, and the mole fraction of A in a solution is 0.6, what is the vapor pressure of the solution?
💡 Hint: Remember that you multiply the mole fraction by the vapor pressure of pure solvent.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.