Assignment #1 ± Reaction Order 7 of 11 Constants| Periodic Table Part E For the
ID: 576783 • Letter: A
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