Mr[P2O5] = Ar[P] * 2 + Ar[O] * 5 = 31 * 2 + 16 * 5 = 142
ω (P) = 62 : 142 * 100 = 44 %
ω (O) = 80 : 142 * 100 = 56 %
Mr[K3PO4] = Ar[K] * 3 + Ar[O] * 4 + Ar[P] = 39 * 3 + 16 * 4 + 31 = 212
ω (K) = 117 : 212 * 100 = 55 %
ω (O) = 64 : 212 * 100 = 30 %
ω (P) = 31 : 212 * 100 = 15 %
Mr[H3PO4] = Ar[H] * 3 + Ar[O] * 4 + Ar[P] = 1 * 3 + 16 * 4 + 31 = 98
ω (H) = 3 : 98 * 100 = 3 %
ω (O) = 64 : 98 * 100 = 65 %
ω (P) = 31 : 98 * 100 = 32 %
Объяснение:
Mr[P2O5] = Ar[P] * 2 + Ar[O] * 5 = 31 * 2 + 16 * 5 = 142
ω (P) = 62 : 142 * 100 = 44 %
ω (O) = 80 : 142 * 100 = 56 %
Mr[K3PO4] = Ar[K] * 3 + Ar[O] * 4 + Ar[P] = 39 * 3 + 16 * 4 + 31 = 212
ω (K) = 117 : 212 * 100 = 55 %
ω (O) = 64 : 212 * 100 = 30 %
ω (P) = 31 : 212 * 100 = 15 %
Mr[H3PO4] = Ar[H] * 3 + Ar[O] * 4 + Ar[P] = 1 * 3 + 16 * 4 + 31 = 98
ω (H) = 3 : 98 * 100 = 3 %
ω (O) = 64 : 98 * 100 = 65 %
ω (P) = 31 : 98 * 100 = 32 %
Объяснение: