Answered: Gold(III)hydroxide is used for…

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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Gold(III)hydroxide is used for electroplating gold onto other metals. It can be made by the following reaction (note the equation is unbalanced)

KAuCl₄(aq) + Na₂CO₃(aq) + 3H₂O(l) → Au(OH)₃(aq) + NaCl(aq) + KCl(aq) + CO₂(g)

To prepare a fresh supply of Au(OH)₃, a chemist at an electroplating plant has mixed 20.00g of KAuCl₄ with 25.00g of Na₂CO₃(both dissolved in excess water)

a. How many grams of Na₂CO₃ will b required to react with KAuCl₄? (only 3 decimal places)

________g of Na₂CO₃

b. what is the maximum number of grams of Au(OH)₃ than can be formed? (only 2 decimal places)

________ g of Au(OH)₃

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