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wC3H6O3 + xO2 –> yCO2 + zH2O, what is the value of w + x + y + z?

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wC3H6O3 + xO2 –> yCO2 + zH2O, what is the value of w + x + y + z?

(a) 3

(b) 6

(c) 10

(d) 14

I had been asked this question in an internship interview.

This intriguing question originated 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 option is (d) 14

To elaborate: The balanced chemical reaction is: C3H6O3 + 3O2 –> 3CO2 + 3H2O, => w + x + y + z = 14.

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