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How many moles of O2 are there when the reaction completes?

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in Chemical Process Calculation by (98.7k points)
How many moles of O2 are there when the reaction completes?

(a) 0

(b) 2

(c) 4

(d) 6

The question was asked during an online interview.

My doubt is from Limiting and Excess Reactant-I in section Material Balances without Reaction and Material Balances Involving Reactions of Chemical Process Calculation

1 Answer

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Best answer
The correct option is (a) 0

The explanation is: Moles left = Initial mole – extent of the reaction*stoichiometric coefficient.

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