C4H9COOH
Объяснение:
2R-COOH + 2Na = 2R-COONa + H2
n(H2)=2.8/22.4=0,125 моль
n(R-COOH)=0.125*2=0.25 моль
M(R-COOH)=25.5/0.25=102 г/моль
СnН2n+1COOH=102
12n+2n+1+12+32+1=102
14n=56 = > n=4
C4H9COOH
Объяснение:
2R-COOH + 2Na = 2R-COONa + H2
n(H2)=2.8/22.4=0,125 моль
n(R-COOH)=0.125*2=0.25 моль
M(R-COOH)=25.5/0.25=102 г/моль
СnН2n+1COOH=102
12n+2n+1+12+32+1=102
14n=56 = > n=4
C4H9COOH