Ag/AgCl electrode can not be used as reference electrode to measure Ksp of AgI because   a. Its potential is not accurately known. b. It is not constant. c. It is not insensitive to the composition of analyte solution. d. It is not stable.

Q: For a nitrate ion selective electrode, the selectivity factor for nitrite over nitrate is 0.062 and…

A: First calculate percentage of nitrite present in nitrate; 0.062×100=6.2% Now calculate percentage of…

Q: An unknown cadmium (II) solution was analyzed polarographically by the method of standard additions.…

A: Given : Mass of unknown sample = 25 ml i = 1.86 μA Concentration of Cadmium ion = 2.12 × 10 -3 M…

Q: The voltammogram for 20.00 mL of solution that was 3.65 x 10-3M in Cd2+ gave a wave for that ion…

A: Given: Volume of solution=20 mL Concentration=3.65×10-3 M Limiting current=31.3 micro Ampere

Q: An unknown cadmium(II) solution was analyzed polarographically by the method of standard additions.…

A: Given, volume of sample  = 26.00 mL Diffusion current = 1.77μA  Concentration of Cd2+=4.76×10-3M…

Q: The main advantage of using a saturated KCl solution at the reference electrode is, A. Potassium…

A: The main advantage of using a saturated KCl solution at the reference electrode is ___ ?

Q: An unknown cadmium(II) solution was analyzed. A 25.00-mL sample of the unknown solution produced a…

A: A) The method is based on the fact that the diffusion current is proportional to the analyte…

Q: Supposed that the diffusion current in a polarogram for reduction of Cd 2+at a mercury electrode is…

A: Given data: Diffusion current = 14 µA. Volume of Cd2+ solution = 25 mL. Concentration of Cd2+…

Q: The table shows a series of standard additions of Cu(II)to acidified water samples measured by…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the main advantage of using a saturated KCl solution at the reference electrode? a)…

A: The correct option would be option d) d) The chloride concentration does not change when the…

Q: 2. Given the following table of standard reduction potentials for a hypothetical element X under…

A: #C: The frost-Ebsworth diagram is plotted by taking n*Eo on the Y-axis and oxidation states of…

Q: A lithium ion-selective electrode gave the potentials given below for the following standard…

A:

Q: An experimenter created a solution with a concentration of 20.0%(w/w) from a solid active compound…

A: Given: Initial %(w/w) of solute = 20.0 % Density of initial solution = 1.4 g/mL> Volume of…

Q: An unknown cadmium(II) solution was analyzed polarographically by the method of standard additions.…

A:

Q: a) Potentiometric techniques require the usage of different reference electrodes. One of such…

A: As per Bartleby Guidelines we can answer the first question with three subparts. Although I am…

Q: 2. Given the following table of standard reduction potentials for a hypothetical element X under…

A: The balanced reduction half-reactions for each of the given call notation in acidic medium(H+) are:…

Q: 1. (a) 0.1 M HNO3 solution at 298K was electrolyzed in Hittorf cell using platinum electrodes. After…

A:

Q: Two Electrochemical cett on Temp. 298 K → Cu(s) + 2n+² (19.) +2 Cu (aq) + 2n(s) [Cut2] = 1.43M 9…

A:

Q: Which of the ff. statements are true about errors in pH measurement? Acid error occurs at very low…

A: Option A is correct. An acid error occurs at a very low pH. Option B is incorrect since sodium error…

Q: One method for determining whether an individual recently fired a gun is to look for traces of…

A:

Q: A Zn electrode for Zn2+ analysis is what type of indicator electrode?   a. glass electrode b.…

A: An electrode is an electrical conductor used to generate electricity through electron flow.

Q: A group of students conducted a similar experiment to Part 3 (note the differences in concentration…

A:

Q: A group of students conducted a similar experiment to Part 3 (note the differences in concentration…

A: As per Nernst equation, potential of a cell is given as: Ecell=Ecell0-0.0591nlog Q

Q: One method for determining whether an individual has recently fired a gun is to look for traces of…

A: Assume ‘x’ ng of Sb are taken from the hands of the individual.  They are dissolved in 5mL of HCl,…

Q: What element makes up the electrode in the Hoffman apparatus? O carbon O lithium O platinum O copper

A: A Hofmann voltameter is an apparatus for electrolysing water invented in 1866. It consists of three…

Q: a. Why dyes cannot be used in the place of pigments? b. What will happen if ITO or FTO is not plated…

A: a) Dyes cannot be used in the place of pigments.

Q: Give Reason?  (i) Why is a high supporting electrolyte concentration used in most electroanalytical…

A:

Q: Explain why strong oxidizing agents interfere with this analysis and why an excess of

A: Oxidizing agents causes oxidation by getting reduced itself. Oxidation is the process of loss of…

Q: 0.5M HA sample with 0.2 dissociation; It is placed in a conductivity cell with a length of 0.9 cm…

A: Given: Concentration of weak electrolyte = 0.5 M Length = 0.9 cm Area = 2cm2

Q: One method for determining whether an individual recently fired a gun is to look for traces of…

A: Let x ng of Sb is taken from the hands of the individual. It is then dissolved in 5ml of HCl, and…

Q: Show detailed solution. A cell was prepared by dipping a Cu wire and a saturated calomel electrode…

A: Solutions :               a) Write a half-reaction for the Cu electrode.(b) Write the Nernst…

Q: The Ksp of CuCl is 1.7 × 10-7. Part A Find Ecell for the cell: Cu(s) | CuCl(s) | Cl¯(aq, 0.40…

A:

Q: A lithium ion-selective electrode gave the potentials given below for the following standard…

A: For a lithium-ion selective electrode, the Nernst equation is given as:…

Q: An unknown cadmium(II) solution was analyzed polarographically by the method of standard additions.…

A: Polarography is a voltammetric technique in which chemical species  undergo oxidation or reduction…

Q: A cell was prepared by dipping a Cu wire and a saturated calomel electrode into 0.10 M CUSO4…

A: Saturated Calomel Electrode (SCE) is a reference electrode made from the reaction between Mercury…

Q: What type of electrode is used in polarography? Platinum Electrode O Dropping Mercury Electrode…

A: Polarography is one type of voltammetry in which current is passed through a cell. The current is…

Q: The resistance of a conductivity cell containing a 0.01 mol KCl solution cm-3 is 150 Ω and the…

A: The resistance of a conductivity cell is directly proportional to the length and inversely…

Q: Calculate the measured cell potential, Ecell, in mV Ref at 25 °C for the following: Eref (3.5 M KCI)…

A: The cell potential, Ecell, is the measure of the potential difference between two half cells in an…

Q: A cell was prepared by dipping a Cu wire and a saturated Ag ƒ AgCl electrode into 0.10 M CuSO4…

A: In Electrochemical cell redox reaction occurs. Half-cell reaction refers either to the oxidation…

Q: A conductivity cell was calibrated using 0.01 M KCl (κ = 1.4087x10-3 S/cm) and the measured…

A:

Q: In a CV experiment, what happens after linearly ramping to the 'switching' potential? The potential…

A:

Q: 2. If ion-selective electrodes for the determination of H*, Na*, Ca2+, S²- have Nernstian responses…

A: 2)  a)  By pH for the H+ electrode. b) By pH for the Ca2+ electrode.   3. a) UV/V is range are…

Q: 9. List all advantages and disadvantages of the hanging mercury drop electrode compared with…

A: Given - hanging mercury drop electrode To find - advantages and disadvantages compared with platinum…

Q: What electrode is X and Y?

A: charge flow from positive electrode to negative then electrons move from negative to positive…

Q: For indicator electrodes, which statements are true? I         Indicator electrodes are made from…

A: Given: statements about indicator electrodes. To find: which statements are true.

Q: cyanide ion-selective electrode obeys the equation The potential was -0.230 V when the electrode was…

A:

Q: 26 I low will the e.m.f vary upon the addition of more water to the left hand electrode? (A)…

A: These question are from different different sections of chemistry. First one is related to…

Q: 3. Two molecules, A and B, with concentrations of 1.00 mM are studied at a glassy carbon electrode…

A: Given:    Molecule A Molecule B Concentration 1.00 mM 1.00 mM Scan Rate 100 mV/sec 100 mV/sec…

Q: Sally has constructed a concentration cell to measure Ksp for MCln. She constructs the cell by…

A: Sally has constructed a concentration cell to measure Ksp for MCln. She constructs the cell by…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.