Assignment #1 ± Reaction Order 7 of 11 Constants| Periodic Table Part E For the

Question

Assignment #1 ± Reaction Order 7 of 11 Constants| Periodic Table Part E For the reaction A B + CD t-E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected Given the data calculated in Parts A, B, C, and D, determine the initial rate for a reaction that starts with 0.65 M of reagent A and 0.50 M of reagents B and C? Express your answer to two significant figures and include the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot or a dash. Tria M) Initial rate 0.50 0.50 0.50 0.50 0.501.50 1.00 0.50 0.50 .00 1.00 0.50 1.5x10-4 4.5x10-4 6.0x10-4 6.0x10-4 View Available Hint(s) 4 3.9.10-4 M Submit revious Answer Incorrect; Try Again; 4 attempts remaining Provide Feedback Next >

Explanation / Answer

from the given data

with respect to [A] reaction is second order.

with respect to [B] reaction is zero order

with respect to [C] reaction is first order

rate law as follows

rate = K [A]2[C]

K = rate / [A]2 [C]

K = 1.50 x 10-4 / [0.50]2 [0.50]

K = 1.50 x 10-4 / 0.125

K = 1.2 x 10-3 M-2s-1

now

if [A] = 0.65 M

[C] = 0.50 M

rate = K [A]2 [C]

rate = 1.2 x 10-3 [0.65]2[0.50]

rate = 2.5 x 10-4 M/s

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