Practice - Counting Atoms in a Chemical Formula
Practice Questions
Test your understanding with targeted questions
How many hydrogen atoms are in H₂O?
💡 Hint: Look at the subscript next to H.
What does a lack of subscript after an element indicate?
💡 Hint: Consider the meaning of subscripts.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the subscript 2 in H₂O represent?
💡 Hint: Focus on the subscript next to H.
True or False: In C₆H₁₂O₆, the number of oxygen atoms is 6.
💡 Hint: Recheck the subscript for the oxygen atom.
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Challenge Problems
Push your limits with advanced challenges
Count the total number of atoms in Fe₂(SO₄)₃.
💡 Hint: Don't forget to consider the subscripts for sulfate, which has 4 oxygen atoms.
If you have 3 moles of (NH₄)₂SO₄, how many nitrogen atoms are there?
💡 Hint: Use the number of nitrogen atoms per formula unit as a starting point.
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Reference links
Supplementary resources to enhance your learning experience.