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xKMnO4 + yFeS + zH2SO4 -> xMnSO4 + wFe2(SO4)3 + uK2SO4 + zH2O, what is the value of x + y + z + w + u?(a) 60(b) 74(c) 85(d) 98The question was posed to me in examination.Question is from Stoichiometry topic in chapter The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer»

Correct answer is (B) 74

To ELABORATE: The balanced CHEMICAL reaction is 18KMnO4 + 10FeS + 32H2SO4 -> 18MnSO4 + 5Fe2(SO4)3 + 9K2SO4 + 32H2O, => x + y + z + w + U = 74.



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