# Problem: The following set of data was obtained by the method of initial rates for the reaction:BrO3-(aq) + 5 Br-(aq) + 6 H+(aq) → 3 Br2(aq) + 3 H2O(l).What is the rate law for the reaction?Expt               [BrO3-] (M)                 [Br-] (M)                     [H+] (M)                   Rate (M/s)1                      0.10                            0.10                            0.10                            8.0x10-42                     0.20                           0.10                           0.10                            1.6x10-33                     0.20                           0.15                           0.10                            2.4x10-34                     0.10                             0.10                           0.25                            5.0x10-3a.  rate = k[BrO3-][Br-][H+]b.  rate = k[H+]2c. rate = k[BrO3-][Br-][H+]2d.  rate = k[BrO3-][Br-]e.  rate = k[BrO3-]2[Br-]2[H+]2

###### FREE Expert Solution

We're being asked to determine the rate law for the reaction given the following initial rate data:

BrO3-(aq) + 5 Br-(aq) + 6 H+(aq) → 3 Br2(aq) + 3 H2O(l).

Expt               [BrO3-] (M)                 [Br-] (M)                     [H+] (M)                      Rate (M/s)
1                      0.10                            0.10                            0.10                            8.0x10-4
2                      0.20                            0.10                            0.10                            1.6x10-3
3                      0.20                            0.15                            0.10                            2.4x10-3
4                      0.10                            0.10                            0.25                            5.0x10-3

Recall that the rate law only focuses on the reactant concentrations and has a general form of:

k = rate constant
A, B, and C = reactants
x, y, & z = reactant orders

To calculate the order of the reaction with respect to each reactant, we will use the experimental data given.

• BrO3-

Look for the experimental data where the concentration of BrO3- changes while the concentration of the other reactants remains the same.

95% (210 ratings) ###### Problem Details

The following set of data was obtained by the method of initial rates for the reaction:

BrO3-(aq) + 5 Br-(aq) + 6 H+(aq) → 3 Br2(aq) + 3 H2O(l).

What is the rate law for the reaction?

Expt               [BrO3-] (M)                 [Br-] (M)                     [H+] (M)                   Rate (M/s)
1                      0.10                            0.10                            0.10                            8.0x10-4
2                     0.20                           0.10                           0.10                            1.6x10-3
3                     0.20                           0.15                           0.10                            2.4x10-3
4                     0.10                             0.10                           0.25                            5.0x10-3

a.  rate = k[BrO3-][Br-][H+]
b.  rate = k[H+]2
c. rate = k[BrO3-][Br-][H+]2
d.  rate = k[BrO3-][Br-]
e.  rate = k[BrO3-]2[Br-]2[H+]2

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