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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
If you have 5 moles of salt and 10 moles of water in a solution, what is the mole fraction of the salt?
๐ก Hint: Use the formula: \\(x_A = \\frac{n_A}{n_{total}}\\).
Question 2
Easy
What is the mole fraction of a solvent in a solution containing 4 moles of solute and 6 moles of solvent?
๐ก Hint: Remember, total moles = solute + solvent.
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 mole fraction represent?
- Total moles in a solution
- Ratio of component moles to total moles
- Concentration in mL
๐ก Hint: Remember it involves the components in the solution.
Question 2
True or False: Mole fraction can be greater than 1.
- True
- False
๐ก Hint: Think of how ratios work.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a laboratory, a chemist mixes 2 moles of NaCl, 1 mole of KCl, and 4 moles of water. Calculate the mole fraction of each component and explain the importance of those calculations in solution chemistry.
๐ก Hint: Remember to use \\(x = \\frac{n}{n_{total}}\\).
Question 2
During an experiment, 3 moles of CO2 is mixed with 2 moles of O2 and 5 moles of N2. Calculate the mole fraction of CO2 and discuss its role in aerobic respiration.
๐ก Hint: Use the sum of all moles for your calculation.
Challenge and get performance evaluation