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Stoichiometry

12 g of X2O...

Question

12 g of $X_{2} O_{5}$ an oxide of element X contains 7.2 g of X. How many moles of X does 7.2 g of the element contain ?

A

6

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B

0.5

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C

0.12

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D

4.5

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Solution

The correct option is C 0.12

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