Question

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Answer 1

Explanation:

No.of moles of (NH4)3(PO4)

= 13410g/149.09g/mol= 89.94mol

If we take this no.of moles as no.of moles of Na2SO4 .their number of molecules will be same.

so, no. of moles of Na2SO4 to be taken= 89.94mol

hence, it's mass= (89.94mol)×(142.04g/mol)

= 12.77kg