Be sure to answer all parts. The active agent in many hair bleaches is hydrogen peroxide. The amount of H₂O₂ in 14.1-g of hair bleach was determined by titration with a standard potassium permanganate solution: 2 MnO4 (aq) +5 H,O,(aq) +6 H*(aq) → 5 0,(g) + 2 Mn→+(aq) +8 H,O(D) (a) For the titration, how many moles of MnO4 were required if 37.9 mL of 0.189 M KMnO4 was needed to reach the end point? Write your answer to the correct number of significant figures. Enter your answer in scientific notation. x 10 mol MnO4 (b) How many moles of H₂O₂ were present in the 14.1 g sample of bleach? Write your answer to the correct number of significant figures. mol H₂O₂

Be sure to answer all parts. The active agent in many hair bleaches is hydrogen peroxide. The amount of H₂O₂ in 14.1-g of hair bleach was determined by titration with a standard potassium permanganate solution: 2 MnO4 (aq) +5 H,O,(aq) +6 H*(aq) → 5 0,(g) + 2 Mn→+(aq) +8 H,O(D) (a) For the titration, how many moles of MnO4 were required if 37.9 mL of 0.189 M KMnO4 was needed to reach the end point? Write your answer to the correct number of significant figures. Enter your answer in scientific notation. x 10 mol MnO4 (b) How many moles of H₂O₂ were present in the 14.1 g sample of bleach? Write your answer to the correct number of significant figures. mol H₂O₂

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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