The oxidation of iron (II) ion by dichromate ion in acidic solution follows the rate law
rate = k [Cr2O72−] [Fe2+][H+]
Which of the following statements is correct?
A. If the rate is measured in mol L–1s–1, the units of k are mol–1 L s.
B. Doubling the concentration of each of the three ions will increase the rate by a factor of 8.
C. Doubling the concentration of Cr2O72− will increase the rate by a factor of 4.
D. The rate is second order in Fe2+.
E. An increase in pH will cause an increase in the rate.
As reation is overall third order
So by doubling each reactants rate increases by factor 8.
(B) is correct option.
The oxidation of iron (II) ion by dichromate ion in acidic solution follows the rate law...
2) ( ) An acidic potassium dichromate can be used to titrate a solution of iron(II) ions since it reacts according to the following equation: Cr2O72 (aq) +6 Fe* (aq) +14 H30' (aq) - 2 Cr* (aq) + 6 Fe" (aq) + 21 H20 (1) a. What is the oxidizing agent in the above reaction? b. A dichromate stock solution is made by dissolving 2.567 g of K Cr2O, (294.2 g/mol) in a total of 50.0 ml. What is the...
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