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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the molar mass of water (H2O)?
💡 Hint: Add the molar masses of hydrogen and oxygen.
Question 2
Easy
If I have 2 moles of sodium chloride, how many grams do I have?
💡 Hint: Find the molar mass of NaCl first.
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 is Avogadro's constant?
- 6.02 × 10^23
- 6.022 × 10^23
- 6.02 × 10^24
💡 Hint: This number helps convert moles to number of particles.
Question 2
True or False: The molar mass of an element is the same as its atomic mass in grams.
- True
- False
💡 Hint: Check the periodic table for help.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the total mass of 2.5 moles of sodium sulfate (Na2SO4).
💡 Hint: Summing the molar mass components will lead you to the correct total.
Question 2
How many moles are in 0.250 kg of magnesium chloride (MgCl2)?
💡 Hint: Don't forget to convert kg to grams!
Challenge and get performance evaluation