CnH2n+1COOH+NaHCO3=CnH2n+1COONa+CO2+H2O
n(CO2)=5.6/22.4=0.25моль
n(CnH2n+1COOH)=n(CO2)=0.25моль
M(CnH2n+1COOH)=m/n=25.5/0.25=102г/моль
12n+2n+1+12+16+16+1=102
14n+46=102
14n=56
n=56/14=4
ответ: C4H9COOH
https://ru-static.z-dn.net/files/d5e/ecc50fa4af1fbea4fb3f42f95e7eb493.jpg
CnH2n+1COOH+NaHCO3=CnH2n+1COONa+CO2+H2O
n(CO2)=5.6/22.4=0.25моль
n(CnH2n+1COOH)=n(CO2)=0.25моль
M(CnH2n+1COOH)=m/n=25.5/0.25=102г/моль
12n+2n+1+12+16+16+1=102
14n+46=102
14n=56
n=56/14=4
ответ: C4H9COOH
https://ru-static.z-dn.net/files/d5e/ecc50fa4af1fbea4fb3f42f95e7eb493.jpg