Question

This is an impossible formula. Pretend it is real. Make sure your answer includes TWO decimal places. If you had 1 mol of Cr7(PO4)3 how many moles of Cr would there be?

Answer 1

Moles are the measure of the small entities. There are 7 moles of Cr in the sample.

What is dissociation?

Dissociation is the splitting of the larger compound into its simpler and smaller constituents. The dissociation of the compound will be:

Cr₇(PO₄)₃ ⇆  7Cr³⁺ + 3PO⁴⁻

From the dissociation, it can be said that 1 mole of chromium phosphate dissociates into 7 moles of chromium ions.

Given, that the moles of the compound, chromium phosphate is 1 mole.

Then moles of chromium ion will be: 1 × 7  = 7 moles

Therefore, 7 moles of chromium ions are present in the sample.

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