Ankin có dạng CnH2n−2 (n⩾2)
Phản ứng xảy ra:
\(C_nH_{2n-2}+\left(1,5n-0,5\right)O_2\rightarrow nCO_2+\left(n-1\right)H_2O\)
\(\Rightarrow n=\frac{V_{CO2}}{V_X}=\frac{6,72}{22,4}=3\)
\(\Rightarrow X:C_3H_4\)
\(C_3H_4+AgNO_3+NH_3\rightarrow C_3H_3Ag+NH_4NO_3\)
\(n_X=\frac{11,2}{22,4}=0,5\left(mol\right)=n_{C3H3Ag}\)
\(\Rightarrow m_{C3H3Ag}=0,5.\left(12.3+3+108\right)=73,5\)