W(H)=3.06%, W(P)=31.63%, W(O)=65.31%
Объяснение:
W(H3PO4)=W(H)+W(P)+W(O)
W(H3PO4)=1*3+1*31+4*16
W(H3PO4)=98
W(H)==*100%=3.06%
W(P)=\frac{W(P)}{W(H3PO4)} =\frac{31}{98}**100%=31.63%
W(O)=100%-3.06%-31.63%=65.31%
=
*100%=3.06%
