The reaction between solutions \"A\" and \"B\" occurs 3 steps. Which step is the

Question

The reaction between solutions "A" and "B" occurs 3 steps. Which step is the rate determine step and why? Given the following data for the reaction of A + B rightarrow products, Estimate the order of the reaction with respect to both A and B. Write the rate equation for the reaction. Determine the rate constant. What is the initial rate of reaction when [A] = .50 and [B] = 0.50 Assuming the results you recorded for part 1 are typical, would you conclude that ionic substances in solution are apt to react more or less rapidly than molecular substances? explain in terms of the relative number and strengths of bonds that are broken during a reaction. How did the presence of MnSO4 appear to change the rate of the reaction in part 1? Explain

Explanation / Answer

SO THE SLOWEST STEP=

IO3-+ 3HSO3 3S04-2 + 3H+

.1= K[.1]a[.2]b

                .4= K[.2]a[.2]b

                        .4= K[.2]a[.3]b

DIVIDING I AND II

1/4=[1/2]a

=a=2

SIMILARLY DIVIDING II& III

WE GET

1= [2/3]b

=b=0

ORDER= a+b= 2

RATE EQN rA= K[A]2[B]0

PUTTING ANY EQN VALUE

.1=K[.1]2*1

K= .1/.01=10

INITIAL RATE

= rA= K[A]2[B]0

=10*[.5]2[.5]0

=2.5 M/Lsec

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