Question
Question: Polyethylene can be produced from calcium carbide according to the following sequence of reactions ...
Polyethylene can be produced from calcium carbide according to the following sequence of reactions
CaC2 + H2O ®CaO + HC º CH
nHCº CH + nH2®
The mass of polyethylene which can be produced from 40.0 kg of CaC2 is -
A
6.75 kg
B
17.5 kg
C
8.75 kg
D
9.75 kg
Answer
17.5 kg
Explanation
Solution
64 grams CaC2 gives 26 grams HC º CH
So 64 kg CaC2 gives 26 kg HC º CH
So 40 kg CaC2 gives 26×40/64 kg HC º CH
= 16.25 kg HC º CH
Now 26 kg HC º CH gives 28 kg polythene
So 16.25 kg HC0 CH gives 28×16.25/26 kg polythene = 17.5 kg