Consider the reaction described by the following equation C2

Consider the reaction described by the following equation. C2H4 Br2(aq) + 31-(aq) C2H4(g) + 2Br-(aq)+5(aq) The rate law is rate = k[C,H,Br2][r] where k-5.19 x 103 M S1 k-si9×10-3 M-1.s-1 where What are the missing entries in the following table? Initial rate of formation Run [C2H4Br2lo (M) lo (M) of C2H4 (M-s) 0.157 0.000512 0.157 0.000256 0.157 0.157 Number Number Number M. s

Solution

rate law is:
rate = k[C2H4Br2][I-]

1)
rate = k[C2H4Br2][I-]
put values from row 1:
0.000512 = (5.19*10^-3)*(x)*(0.157)
x = 0.628 M
Answer: 0.628 M

2)
rate = k[C2H4Br2][I-]
put values from row 1:
0.000256 = (5.19*10^-3)*(0.157)*(y)
y = 0.314 M
Answer: 0.314 M

3)
rate = k[C2H4Br2][I-]
put values from row 1:
= (5.19*10^-3)*(0.157)*(0.157)
= 1.28*10^-4 M
Answer: 1.28*10^-4 M/s