Question: Rate Law from Initial Rates ( B ) 2 ClO 2 ( aq ) + 2 OH - ( aq ) - - > ClO

Rate Law from Initial Rates (B)
2ClO2(aq)+2OH-(aq)--> ClO3-(aq)+ ClO2-(aq)+ H2O(l)
The above reaction was studied (at a particular temperature) and the following data (for rate =-d[ClO2]/dt) were obtained:
[ClO2]0[OH-]0 Initial Rate
(mol/L)(mol/L)(mol L-1 s-1)
0.1100.0701.83\times 10-1
0.2200.0353.66\times 10-1
0.2200.0707.32\times 10-1
Which of the following expressions for the rate law are consistent with the above experimental data.
Note that the rate constant may be different for each of the choices below (i.e. k in choice A may be not equal to k in choice B etc).
No
k[OH-]2[ClO2]2=-d[ClO2]/dt
Yes
k[ClO2]2[OH-]=-d[ClO2]/dt
Yes
d[ClO3-]/dt = k[ClO2]2[OH-]
Yes
-d[OH-]/dt = k[OH-][ClO2-]2
No
-d[ClO2]/dt = k[OH-][ClO2]
1 pts
Incorrect. Tries 3/5 Previous Tries
For Rate =-d[ClO2]/dt, calculate the rate constant (k).
(Units required.)
1 pts
Tries 0/5
What would be the initial rate (-d[ClO2]/dt) for an experiment with [ClO2]0=0.250 mol/L and [OH-]0=0.0508 mol/L?
(Units required.)

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