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Science Clinic => Chemistry => Topic started by: Zoey63294 on Jul 8, 2021

Title: If 8.52 g each of zinc, potassium dichromate, and sulfuric acid are reacted by the reaction: 4 Zn + ...
Post by: Zoey63294 on Jul 8, 2021

Question 1

If 8.52 g each of zinc, potassium dichromate, and sulfuric acid are reacted by the reaction:

4 Zn + K₂Cr₂O₇ + 7 H₂SO₄→ 4 ZnSO₄ + 2 CrSO₄ +K₂SO₄ + 7 H₂O

how many grams of potassium dichromate will be left unreacted?
◦ 1.05 g
◦ 2.84 g
◦ 7.30 g
◦ 4.87 g
◦ 3.65 g

Question 2

If 8.52 g each of zinc, potassium dichromate, and sulfuric acid are reacted by the reaction:

4 Zn + K₂Cr₂O₇ + 7 H₂SO₄→ 4 ZnSO₄ + 2 CrSO₄ +K₂SO₄ + 7 H₂O

How many grams of zinc will be left unreacted?
◦ 0.94 g
◦ 3.65 g
◦ 5.27 g
◦ 1.89 g
◦ 3.25 g

Title: If 8.52 g each of zinc, potassium dichromate, and sulfuric acid are reacted by the reaction: 4 Zn + ...
Post by: Expo on Jul 8, 2021

Answer 1

4.87 g

Answer 2

5.27 g

Title: Re: If 8.52 g each of zinc, potassium dichromate, and sulfuric acid are reacted by the reaction: 4 Z
Post by: Nolan McNeil on Oct 21, 2021

Thank you!