How many grams of chromium were in the alloy sample

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Reference no: EM131082970

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 CrO4 2-. It was then found that 3.18 g of Na2SO3 was required to reduce the CrO4 2- to CrO2 - in a basic solution, with the SO3 2- being oxidized to SO4 2-.

(a) Write a balanced equation for the reaction f CrO4 2- with SO3 2- in a basic solution.

(b) How many grams of chromium were in the alloy sample?

Reference no: EM131082970

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