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Stoichiometry

When one mole...

Question

When one mole each of CO and $O_{2}$ are made to react at STP, the total number of mole at the end of the reaction is ?

A

1.5 moles

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B

1 mole

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C

4 moles

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D

2 moles

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Solution

The correct option is A 1.5 moles
$\begin{matrix} {C O}_{1 m o l e} + {\frac{1}{2} O_{2}}_{\frac{1}{2} (1 m o l e)} \to C O_{2} [b a l a n c e d e q u a t i o n] s o, T o t a l n o . o f m o l e s o b t a i n d e d a t t h e e n d o f t h e g i v e n r e a c t i o n = 1 + \frac{1}{2} (1) = 1 + .05 = 1.5 m o l e H e n c e, t h e o p t i o n A i s t h e c o r r e c t a n s w e r . \end{matrix}$

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