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The molecular formula of a fictitious substance is X2YZ4. How many Z atoms are in a...

The molecular formula of a fictitious substance is X2YZ4. How many Z atoms are in a specimen of mass 204 g?

The atomic masses of X, Y, and Z are 1.0u, 24u, and 21u, respectively.

The number of atoms is of the form  
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Answer #1

First of all we calculate the number of moles for the given mass of specimen.

Then we find the number of Z-atom available in the specimen.

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