Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in jewelry, platinum is combined with other metals to form an alloy. To determine the amount of platinum in an alloy, a 7.381 gsample of an alloy containing only platinum and cobalt is reacted with excess nitric acid to form 2.06 g of cobalt(II) nitrate. Calculate the mass percent of platinum in the alloy. mass percent: ------ % Pt
Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in jewelry, platinum is combined with other metals to form an alloy. To determine the amount of platinum in an alloy, a 7.381 gsample of an alloy containing only platinum and cobalt is reacted with excess nitric acid to form 2.06 g of cobalt(II) nitrate. Calculate the mass percent of platinum in the alloy. mass percent: ------ % Pt
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 145QRT: When solutions of silver nitrate and sodium carbonate are mixed, solid silver carbonate is formed...
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Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in jewelry, platinum is combined with other metals to form an alloy. To determine the amount of platinum in an alloy, a 7.381 gsample of an alloy containing only platinum and cobalt is reacted with excess nitric acid to form 2.06 g of cobalt(II) nitrate. Calculate the mass percent of platinum in the alloy.
mass percent: ------ % Pt
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