Answer:
Explanation:
a. The equation of the reaction is
H2 + Cl2 ----> 2HCl
That is
2.016 g hydrogen react with 2*35.45 g of chlorine to form 72.916 g HCl gas.
1 g H2 react with 35.169 g to give 35.657 g HCL
We have 20 g of chlorine
So amount of HCL gas produced is (20/35.169) * 35.657
= 20.28 g HCl to 2 decimal places.
b. The limiting agent is chlorine.
c. Some hydrogen is left after the reaction is completed.
Number of g H2 in 20.277 g KCl
= ((1.008/ (35.45 + 1.008) * 20.277
= 0.561 g
Amount left
= 20 -- 0.561
= 19.44 g