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C5H12 + xO2 -> yCO2 + zH2O, what is the value of x + y*z?

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C5H12 + xO2 -> yCO2 + zH2O, what is the value of x + y*z?

(a) 24

(b) 38

(c) 46

(d) 54

The question was posed to me in quiz.

This intriguing question comes from Stoichiometry topic in chapter The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

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The correct answer is (b) 38

For explanation I would say: The balanced chemical reaction is: C5H12 + 8O2 -> 5CO2 + 6H2O, => x + y*z = 8 + 5*6 = 38.

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