a, \(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
\(C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)
b, Ta có: \(n_{C_2H_4}+n_{C_2H_2}=\dfrac{0,56}{22,4}=0,025\left(mol\right)\) (1)
Theo PT: \(n_{Br_2}=n_{C_2H_4}+2n_{C_2H_2}=\dfrac{5,6}{160}=0,035\left(mol\right)\) (2)
Từ (1) và (2) \(\Rightarrow\left\{{}\begin{matrix}n_{C_2H_4}=0,015\left(mol\right)\\n_{C_2H_2}=0,01\left(mol\right)\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}m_{C_2H_4}=0,015.28=0,42\left(g\right)\\m_{C_2H_2}=0,01.26=0,26\left(g\right)\end{matrix}\right.\)
c, \(CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\)
Theo PT: \(n_{CaC_2}=n_{C_2H_2}=0,01\left(mol\right)\Rightarrow m_{CaC_2}=0,01.64=0,64\left(g\right)\)