7/10/2018 11:59 PM 13.6/20 Print Calulator Periodic Table estion 10 of 13 Due Da

Question

7/10/2018 11:59 PM 13.6/20 Print Calulator Periodic Table estion 10 of 13 Due Date Points P Grade C Descrip Policies You c You c You University Science Books presented by Saping Learning General Chemistry 4th Edition Consider the reaction described by the following equation. The rate law is rate-kC,H,Brwhare 4 where k-4.41 x 103 M What are the missing entries in the following table? You nitial rate of formation ans Run [CH4Br2b (M) o (M) ofC2Hs (Ms) 0.000657 0.000329 0.193 2 0.193 3 0.193 0.193 Number Number M.s 2 Hint

Explanation / Answer

Run 1

Put all the known values in rate law equation

0.000657 M.s^-1 = 4.41 * 10^-3 M^-1s^-1 * (x)(0.193 M)

0.000657 M.s^-1 = x * 0.0008511 s^-1

x = 0.000657 M.s^-1 / 0.0008511 s^-1 = 0.772 M

x = 0.772 M

Run 2

We can write

0.000329 M.s^-1 = 4.41 * 10^-3 M^-1 s^-1 * (0.193 M) * y

0.000329 M.s^-1 = 0.000851 s^-1 * y

y = 0.000329 M.s^-1 / 0.000851 s^-1 = 0.387 M

y = 0.387 M

Run 3

z = 4.41 * 10^-3 M^-1 s^-1 * (0.193 M) (0.193 M)

z = 0.000164 M.s^-1

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