How many grams of CrSO₄ will be made from 25.0 grams each of Zn,K₂Cr₂O₇,and H₂SO₄?
4 Zn + K₂Cr₂O₇ + 7 H₂SO₄ → 4 ZnSO₄ + 2 CrSO₄ + K₂SO₄ + 7 H₂O

Question

How many grams of CrSO₄ will be made from 25.0 grams each of Zn,K₂Cr₂O₇,and H₂SO₄? 4 Zn + K₂Cr₂O₇ + 7 H₂SO₄ → 4 ZnSO₄ + 2 CrSO₄ + K₂SO₄ + 7 H₂O

Quizplus · Accepted Answer

The balanced chemical equation is:4 Zn + K₂Cr₂O₇ + 7 H₂SO₄ → 4 ZnSO₄ + 2 CrSO₄ + K₂SO₄ + 7 H₂OFrom the equation, we can see that 1 mole of K₂Cr₂O₇ reacts with 2 moles of CrSO₄.Therefore, 25.0 grams of K₂Cr₂O₇ will react with 25.0 grams of CrSO₄.The molar mass of CrSO₄ is 152.15 g/mol.Therefore, 25.0 grams of CrSO₄ is equal to 0.164 moles of CrSO₄.Therefore, the correct answer is A) 10.8 g.

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How Many Grams of CrSO₄ Will Be Made from 25