18. How many grams of PC13, are produced from 93.0 g of
Pe and 213 g of C1,? Rcaction is 80% officiont
(A) 200 g
(B) 220 g
(C) 240 g
(D) 260 g
Answers
Answered by
0
Answer:
(B) 220g
Explanation:
p + 3cl = pcl3
1:3:1
P= 31u
93g = 3 mol P
35.5= 1mol cl
71=2mol cl
213= 2*3molcl= 6mol cl
= 2mol 3cl
3P + 6cl are there
chlorine will react with 2P, 1 P is left.
2PCl3 will be formed in 100% efficient reaction.
8/5 Pcl3 will be formed in 80% reaction.
8/5(31+106.5) = mass of pcl3 = 220g of Pcl3.
therefore option (B) is right 220g.
Similar questions