nC2H4 = 0.56/22.4 = 0.025 (mol)
C2H4 + Br2 => C2H4Br2
0.025__0.025____0.025
mC2H4Br2 = 0.025*188 = 4.7 (g)
mBr2 = 0.025*160 = 4 (g)
C% Br2 = 4/150 * 100% = 2.67%
a. \(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
b.\(n_{C_2H_4}=\dfrac{n}{22,4}=\dfrac{0.56}{22.4}=0.025\)mol
\(n_{C_2H_4Br_2}=\dfrac{0,025.1}{1}=0,025mol\)
\(m_{C_2H_4Br_2}=n.M=260.0,025=6.5g\)