Question

prin arderea unui mol de alchina se obtin 72g apa.nr. de alchine izomere este....? O explicatie se poate?

Answer 1

Notam: CnH2n-2
n=m/M=72/18=4
1mol................................................n-1 moli
CnH2n-2 + (3n-1)/2O2 -> nCO2 + (n-1)H2O
1mol................................................4moli
n-1=4 => n=5
f.m: C5H8
CH≡C-CH2-CH2-CH3
CH≡C-CH(CH3)-CH3
CH3-C≡C-CH2-CH3
3 alchine izomere