Question

Exhibit 13-2 Use the data set below for the reaction of CaHsCl with water to answer the following question(s). C4H9CI+ H20 C4H9OH+HCI Time, t (s) IC H&CI], (M) 0.0 50.0 100.0 0.1000 0.0905 0.0820 150.0 0.0741 200,0 0.0671 300.0 0.0549 400.0 0.0448 500.0 0.0368 800.0 0.0200 2. Refer to Exhibit 13-2. What is the average rate of reaction over the time interval from 150.0 seconds to 300.0 seconds? a. 3.80 x 10-5 M/s b. 1.01 x 104 M/s c. 3.36 x 10 M/s d. 1.28 x 104 M/s e. 1.60 x 10 M/s

Answer 1

solu cinen. . Cu Hq Q + H₂O - C4H GOH + He As given in the reaction CuHgCl is reactant. So, as time will passes it's should be concentration decreases. Therefore awerge rate of reaction given by Avg Rate - Clounge Concentration with time change in time - CC2-,) til ..(C2-C.) 1. CT₂-T) Avg. Rate : Cz - conceutration at time Tz c- concentration at time T, T & T are times in seconds. C,& cz are concentration in (m). To find - Aug. Rate of reaction over the time interval from from 150.0 seconds to 300.0 seconds. Take the data from given table in the question at t, 150s , C, = 0.0741M t₂ =300s, C₂ = 0.0549M put these values in equation ) Avg. Rate = -(0.0549 -0.0741) M w -4 (300 -150 ) s Therefore, Aug. Rate over the time interval from 150s to 300s is 1.28x10 4 M/S. So, option (d) is correct. 220