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12n+2n+1+12+16+16+1=102
14n+46=102
14n=102-46
14n=56
n=4
C4H9COOH-KWAS PENTANOWY
mC=12u
mH=1u
mO=16u
mC : mH : mO = 5*12 : 10*1 : 2*16
mC : mH : mO = 60 : 10 : 32
mC : mH : mO = 30 : 5 : 16