Mr(N2)=14+14=28
Mr(H2)=1+1=2
Mr(O2)=16+16=32
Mr(HCI)=1+35.5=36.5
MR(NaCI)=23+35.5=58.5
Mr(HNO3)=1+14+16×3=63
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Mr(N2)=14+14=28
Mr(H2)=1+1=2
Mr(O2)=16+16=32
Mr(HCI)=1+35.5=36.5
MR(NaCI)=23+35.5=58.5
Mr(HNO3)=1+14+16×3=63