In a determination of P an aqueous solution of NaH_(2)PO_(4) is treate – InterviewSolution

1.	In a determination of P an aqueous solution of NaH_(2)PO_(4) is treated with a mixture of ammonium and magnesium ammonium phosphate Mg(NH_(4))PO_(4).6H_(2)O. This is heated and decomposed to magnesium pyrophosphate, Mg_(2)P_(2)O_(7) which is weighed . A solution of NaH_(2)PO_(4) yeilded 1.11 g of Mg_(2)P_(2)O_(7). What weight of NaH_(2)P_(2)O_(7) was present originally ? (P = 31)
Answer» ANSWER :`1.20` GM

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