0.5 g of an organic substance containing phosphorus was heated with conc `HNO_(3)` in the carius tube, the phosphoric acid thus formed was precipitated with magnesia mixture `(MgNH_(4)PO_(4))` which on ignition gave a residue to 1.0 g of megnesium pyrophosphate `(Mg_(2)P_(2)O_(7))` The percentage of phosphorous in the organic compound is

0.5 gm of an organic substance containing phosphorous was heated with conc. HNO_(3) in the Carius tube. The phosphoric acid thus formed was precipitated with magnesia mixture ( MgNH_(4)PO_(4) ) which on ignition gave a residue of 1.0 gm of magnesium pyrophosphate ( Mg_(2)P_(2)O_(7) ). The percentage of phosphorous in the organic compound is :

0.5 gm of an organic substance containing prosphorous was heated with sonc. HNO_3 is the carius tube. The phosphoric acid thus formed was precipitated with magnesia mixture (MgNH_4PO_4) which on ignition gave a residue of 1.0 gm of magnesium phyrophosphate (Mg_2P_2O_7) . The precentage of phosphorous in the organic compound is:

0.5 gm of an organic substance containing prosphorous was heated with sonc. HNO_3 is the carius tube. The phosphoric acid thus formed was preciopitated with magnesia mixture (MgNH_4PO_4) which on ignition gave a residue of 1.0 gm of magnesium phrrophosphate (Mg_2P_2O_7) . The precentage of phosphorous in the organic compound is:

1.6 g of an organic compound gave 2.6 g of magnesium pyrophosphate. The percentage of phosphorus in the compound is

1.6 g of an organic compound gave 2.6 g of magnesium pyrophosphate . The percentage of phosphorus is the compound is

0.12g of an organic compound gave 0.22 Mg_(2)P_(2)O_(7) by the usual analysis. The percentage of phosophorus in the compound is