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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a mole?
💡 Hint: Think about the definition and what it represents.
Question 2
Easy
What is the formula to find the moles from a mass?
💡 Hint: Focus on the relationship between mass and molar mass.
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 number?
- 6.022×10²³
- 3.14
- 1.67×10²³
💡 Hint: Recall the definition of a mole.
Question 2
The molar mass of carbon dioxide is 44 g/mol. How many grams are in 3 moles?
💡 Hint: Consider how to convert moles to grams.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the mass in grams of 5 moles of sulfuric acid (H₂SO₄) given its molar mass is 98 g/mol.
💡 Hint: Apply the formula for mass.
Question 2
You have 10 grams of nitrogen gas (N₂). How many moles and particles do you have? (Molar mass of N₂ is 28 g/mol)
💡 Hint: Start by calculating moles, then convert to particles.
Challenge and get performance evaluation