Practice Set
Chemistry Set 7
Answer 48 questions in one focused session, then review your score, accuracy, and explanations immediately.
Set 748 questionsAnswered 0Question 1 / 48Medium
Set 7
Question 1
Medium
Calculate the number of moles in 70 g of a substance with a molar mass of 21 g/mol.
Question 1 of 48. Select an answer, then keep moving while the controls stay in view.
Practice summary
Focus mode, topics, and quick set guidance.
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Practice summary
Focus mode, topics, and quick set guidance.
Stay in one set, answer in any order, and submit when you want a score with explanations.
Topics: Moles, Atomic Structure, Ideal Gas Law, Acids & Bases
Question navigator
Jump to any question when you want to review or change direction.
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Question navigator
Jump to any question when you want to review or change direction.
Next steps
Open supporting pages only when you need them.
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Next steps
Open supporting pages only when you need them.