H2O Ar(H)=1 Ar(O)=16 Mr(H2O)=18 H3PO4

Question

H2O
Ar(H)=1
Ar(O)=16
Mr(H2O)=18
H3PO4

Answer 1

Ar (H)=1
Ar (P)=31
Ar (O)= 16
Mr(H3PO4)= 98