6 To calculate E for a redox reaction before the titration begins can be calculated from1.a. The titrant coupleb. Using the E for both half reactionsC. The analyte coupled. Can't be calculatedWhich of the following statements is incorrect2a. A primary-standard grade salt of cerium(IV) is availableb. cerium (IVM solutions decompse slowly thus require occasional restandardization.c. Solutions of cerium (IV) in sulfuric acid are more stable than those of KMNO.d.solution is more widely used than cerium(IV) solution as an oxidizing agent.Standard solutions of most reductants are used in back titration because.a.Their reactions with the analyte are very slowb. The endpoints can't be detectedC They undergo reaction with atmospheric oxygend. All of the aboveWhich statement is correct when using bromine as an oxidantO a. Measured excess of standard bromate is added to the sample plus an excess ofpotassium bromide, excess bromine is titrated with Iodide ionOb.Excess of potassium bromide is added to the sample, excess bromide is titrated withIodide ionO C. Excess of standard bromate is added to the solution, then excess bromate is determinedby its titration against lodide ionExcess of standard bromate is added to the solution, then excess bromate is determinedby its titration against Iodide ion

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Answered: To calculate E for a redax reaction…

To calculate E for a redax reaction before the titration begins can be calculated from a. The titrant couple b. Using the E for both half reactions C The analyte couple d. Can't be calculated

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter24: Coulometry

Section: Chapter Questions

Problem 24.4QAP: Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose...

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Question

To calculate E for a redox reaction before the titration begins can be calculated from
1.
a. The titrant couple
b. Using the E for both half reactions
C. The analyte couple
d. Can't be calculated
Which of the following statements is incorrect
2
a. A primary-standard grade salt of cerium(IV) is available
b. cerium (IVM solutions decompse slowly thus require occasional restandardization.
c. Solutions of cerium (IV) in sulfuric acid are more stable than those of KMNO.
d.
solution is more widely used than cerium(IV) solution as an oxidizing agent.
Standard solutions of most reductants are used in back titration because.
a.
Their reactions with the analyte are very slow
b. The endpoints can't be detected
C They undergo reaction with atmospheric oxygen
d. All of the above
Which statement is correct when using bromine as an oxidant
O a. Measured excess of standard bromate is added to the sample plus an excess of
potassium bromide, excess bromine is titrated with Iodide ion
Ob.
Excess of potassium bromide is added to the sample, excess bromide is titrated with
Iodide ion
O C. Excess of standard bromate is added to the solution, then excess bromate is determined
by its titration against lodide ion
Excess of standard bromate is added to the solution, then excess bromate is determined
by its titration against Iodide ion

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