Q7) Silver jewellery is usually made from silver and copper alloys. The amount of copper in an alloy can vary considerably. The finest quality alloy is sterling silver, which is 92.5% silver by mass. To determine the composition of a silver-copper alloy, a jeweller dissolved 0.141 g of metal shavings in 50 mL of concentrated nitric acid and then added 1.00 M KCI solution until no more precipitate formed. Filtration and drying yielded 0.164 g of AgCl precipitate. What was the mass composition of the silver alloy? (87.5%)

Q7) Silver jewellery is usually made from silver and copper alloys. The amount of copper in an alloy can vary considerably. The finest quality alloy is sterling silver, which is 92.5% silver by mass. To determine the composition of a silver-copper alloy, a jeweller dissolved 0.141 g of metal shavings in 50 mL of concentrated nitric acid and then added 1.00 M KCI solution until no more precipitate formed. Filtration and drying yielded 0.164 g of AgCl precipitate. What was the mass composition of the silver alloy? (87.5%)

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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