Mr(H2SO4)=Ar(2H)+Ar(S)+Ar(4O)=2+32+64=98
Mr((CH3)2CO)=Ar(3C)+Ar(O)+Ar(6H)=36+16+6=58
Mr(CH3COOH)=Ar(2C)+Ar(4H)+Ar(2O)=24+4+32=60
Mr(H2SO4)=Ar(2H)+Ar(S)+Ar(4O)=2+32+64=98
Mr((CH3)2CO)=Ar(3C)+Ar(O)+Ar(6H)=36+16+6=58
Mr(CH3COOH)=Ar(2C)+Ar(4H)+Ar(2O)=24+4+32=60