a) C2H2 + 2Br2 --> C2H2Br4
b) \(n_{C_2H_2}=\dfrac{5,2}{26}=0,2\left(mol\right)\)
PTHH: C2H2 + 2Br2 --> C2H2Br4
0,2--->0,4------>0,2
=> \(m_{C_2H_2Br_4}=0,2.346=69,2\left(g\right)\)
c) \(V_{ddBr_2}=\dfrac{0,4}{1}=0,4\left(l\right)\)
C2H2+2Br2to>C2H2Br4
0,2-------0,4----------0,2 mol
n C2H2=\(\dfrac{5,2}{26}\)=0,2 mol
=>m C2H2Br4=0,2.346=69,2g
=>Vdd Br2=\(\dfrac{0,4}{1}\)=0,4l=400ml