At 25C the reaction Iaq OClaq OIaq Claq has the following

At 25°C, the reaction, I-(aq) + OCl-(aq) OI-(aq) + Cl-(aq), has the following rate law: Rate = (0.546 L mol-1 s-1) [I-][OCl-]. Calculate the rate of the reaction when: \'

(a) [I-] = 0.0122 M and [OCl-] = 0.0465 M: Rate = _______mol L-1 s-1

Solution

I-(aq) + OCl-(aq) --------------> OI-(aq) + Cl-(aq),

rate law: Rate = (0.546 L mol-1 s-1) [I-][OCl-].

a)

[I-] = 0.0122 M

[OCl-] = 0.0465 M

rate = 0.546 x [I-][OCl-].

        = 0.546 x 0.0122 x 0.0465

rate = 3.10 x 10^-4 mol L-1 s-1

b)

[I^-] = 0.168 M

[OCl^-] = 0.0423 M

rate = 0.546 x 0.168 x 0.0423

rate = 3.88 x 10^-3 mol L^-1 s^-1