Chemistry, 21.04.2020 18:00 lovemusic4
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 8.528 g sample of an alloy containing platinum and cobalt is reacted with excess nitric acid to form 2.49 g of cobalt(II) nitrate. Calculate the mass percent of platinum in the alloy.
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Chemistry, 23.06.2019 05:00
Question 5 match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) reactant that can produce more of the product theoretical yield c) amount of product predicted to be produced by the given reactants
Answers: 2
Chemistry, 23.06.2019 05:40
The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes
Answers: 2
Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardnes...
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