Which of the Following Contains the Greatest Mass of Oxygen

question 105

Multiple Choice

Which of the following contains the greatest mass of oxygen atoms?

• A)0.5 mol CoSO₄ • 7H₂O
• B)2.1 mol KHSO₄
• C)1.1 mol K₂Cr₂O₇
• D)2.1 mol H₂O₂
• E)2.1 mol Na₂S₂O₃

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