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Acidified potassium dichromate oxidises hydrogen… | StemPy Lab

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Acidified potassium dichromate oxidises hydrogen sulfide to sulfur. How many moles of H₂S are oxidised by 0.0840 mol of dichromate?

ChemistryMediumHigh School (11–12)The d- and f-Block Elements › Transition Elements (d-Block)A-Level IB

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Acidified potassium dichromate oxidises hydrogen sulfide to sulfur. How many moles of $\text{H}_2\text{S}$ are oxidised by $0.0840\ \text{mol}$ of dichromate?

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← The equivalent mass of potassium dichromate, of molar mass M, when it oxidises iodide ions in acid solution, is A 7.20 g sample of impure potassium permanganate is heated until it stops losing mass, and the impurities do not change. The sample loses 0.544 g, as oxygen. Take K = 39, Mn = 55 and O = 16 for the molar masses. What is the percentage of KMnO₄ in the sample? →

More onThe d- and f-Block Elements › Transition Elements (d-Block)

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