CHM135H1 Lecture Notes - Iodate, Stoichiometry

57 views1 pages

fuchsiahippopotamus4

6 Mar 2013

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

avalack09 and 39671 others unlocked

CHM135H1 Full Course Notes

Verified Note

90 documents

Document Summary

The iodate ion reacts with sulfite ions in the following reaction. 2- (aq) " i- (aq) + 3 so4. I- the disappearance of iodate is three times the disappearance of sulfite. Ii- the disappearance of iodide is the same as the appearance of iodate. The rate of formation of all the products are the same. The rate of disappearance of sulfite is three times the disappearance of iodate: what are the rates of iodide and sulfate ions being produced if the sulfite ion is disappearing at a rate of 2. 4 x.

Related Questions

The iodate ion is reduced by sulfite according to the following reaction:

IO₃^-(aq) + 3SO₃^2-(aq) I^-(aq) + 3 SO₄^2-(aq)

The rate of this reaction is found to be first order in IO₃^-, first order in SO₃^2-, and first order in H⁺. (a) Write the rate law for the reaction. (b) By what factor will the rate of the reaction change if the pH is lowered from 5.00 to 3.50? Does the reaction proceed more quickly or more slowly at the lower pH? (c) By using the concepts discussed in Section 14.6, explain how the reaction can be pH-dependent even though H⁺ does not appear in the overall reaction.

emeraldhorse814

Consider the reaction of peroxydisulfate ion (S₂O₈^2-) with iodide ion (I^–) in aqueous solution:

S₂O₈^2– (aq) + 3 I ^– (aq) 2 SO₄^{2 –} (aq) + I₃^- (aq)

At a particular temperature the initial rate of disappearance of S₂O₈^{2 -} varies with reactant concentrations in the following manner:

(a) Determine the rate law for the reaction and state the units of the rate constant. (b) What is the average value of the rate constant for the disappearance of S₂O₈^2– based on the four sets of data? (c) How is the rate of disappearance of S₂O₈^2– related to the rate of disappearance of I^–? (d) What is the rate of disappearance of I^– when [S₂O₈^2-] = 0.025 M and [I^–] = 0.050 M?

redworm317

CHM135H1 Lecture Notes - Iodate, Stoichiometry

CHM135H1 Full Course Notes

Document Summary

Get access

Related Documents

CHM135H1 Lecture Notes - Lecture 21: Phosphate, Acid Strength, Electronegativity

CHM135H1 Lecture Notes - Lecture 19: Conjugate Acid, Lone Pair, Hydronium

CHM135H1 Chapter Notes - Chapter 15: Bond-Dissociation Energy, Acid Strength, Oxoacid

Related Questions