Chemistry, 21.03.2020 19:11 queenkimm26
A sample of a chromium-containing alloy weighing 3.450 g was dissolved in acid, and all the chromium in the sample was oxidized to 2CrO42–. It was then found that 3.18 g of Na2SO3 was required to reduce the 2CrO42– to CrO2– in a basic solution, with the SO32– being oxidized to SO42–.
Write a balanced equation for the reaction of 2CrO42– with SO32- in a basic solution.
How many grams of chromium were in the alloy sample?
What was the percentage by mass of chromium in the alloy?
Answers: 1
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A sample of a chromium-containing alloy weighing 3.450 g was dissolved in acid, and all the chromium...
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