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A given sample of pure compound contains...

A given sample of pure compound contains `9.81 g` of `Zn`, `1.8xx10^(23)` atoms of chromium, and `0.60` mol of oxygen atoms. What is the simplest formula?

A

`ZnCr_(2)O_(7)`

B

`ZnCr_(2)O_(4)`

C

`ZnCrO_(4)`

D

`ZnCrO_(6)`

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