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You are given a sample that contains a mixture of the following two arsenic-containing minerals: gersdorffite (NiAsS) and getchellite (AsSbS3). You start with a sample of this mixture that has a mass of 88.78 grams. You perform a reaction that converts the arsenic (As) in these minerals into the form arsenic(III) oxide (As2O3), and 49.54 grams of this product are obtained.
What is the percent by mass of
gersdorffite
in the original sample?
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Please, give all your calculations with three significant figures.
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