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Mole Concept in Balanced Reaction

According to ...

Question

According to the balanced equation below, how many moles of $A l C l_{3}$ can be made from $4.0$ moles of $C l_{2}$ ?
$2 A l + 3 C l_{2} \to 2 A l C l_{3}$

2.7 m o l e s

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4.0 m o l e s

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8.0 m o l e s

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24 m o l e s

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Solution

The correct option is A $2.7 m o l e s$
$2 A l + 3 C l_{2} \to 2 A l C l_{3}$

3 moles of $C l_{2} \to$ 2 moles of $A l C l_{3}$

4 moles of $C l_{2} \to x$

$x = \frac{4 \times 2}{3} = 2.7$

4 moles of $C l_{2}$ produces 2.7 moles of $A l C l_{3}$

Hence, the correct option is A.

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