..:: Moles, Density, Fraction & Concentration on Chemical Engineering related Questions and Answers

Moles, Density, Fraction & Concentration on Chemical Engineering related Questions and Answers

Question : Which of the following has the same number of moles as in 398 grams of CuSO₄?
1. 2 grams of hydrogen
2. 40 grams of oxygen
3. 35 grams of nitrogen
4. 58.5 grams of Sodium chloride
Answer : 2 - 40 grams of oxygen

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