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Molarity

CaCO3+2HCl→ C...

Question

$C a C O_{3} + 2 H C l \to C a C l_{2} + H_{2} O + C O_{2}$
If $4.0$ moles of HCl are available for the reaction with an unlimited supply of $C a C O_{3}$ , how many moles of $C O_{2}$ can be produced at STP?

1.0

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2.0

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2.5

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Solution

The correct option is E $2.0$
$C a C O_{3} + 2 H C l \to C a C l_{2} + H_{2} O + C O_{2}$
As per the balanced chemical reaction, 2.0 moles of HCl produces 1.0 mole of $C O_{2}$ .
4.0 moles of HCl will produce $4.0 \times \frac{1}{2} = 2.0$ moles of $C O_{2}$ .

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