The quinohydrone electrode can be used for solutions of pH more than 7. At pH >7, the [QH2] = [Q]

Q: What is the potential of a tin-tin ion electrode measured against a normal calomel electrode at…

A: In an electrochemical cell, cations will approach the negatively charged cathode to accept electrons…

Q: In the electrochemistry experiment, what would be the potential of the couple at 22 oC, when [Sn4+ ]…

A: Given data: The concentration of Sn4+ [Sn4+]=1.00×10-6 M. The concentration of Sn2+ [Sn2+]=0.89 M.…

Q: Calculate the elecytomotive force (in volts) registered by an electrode immersed in a solution…

A: Given that

Q: Calculate the elecytomotive force (in volts) registered by an electrode immersed in a solution…

A:

Q: Calculate the elecytomotive force (in volts) registered by an electrode immersed in a solution…

A: To calculate the electromotive force registered by an electrode we must use the nernst equation.

Q: The selectivity coefficient, Kg+.H*, for a K* ion-selective electrode is 0.00240. When the electrode…

A: For an ion-selective electrode, the potential is given as: E=constant+β0.05916.log[AK++(KK+,H+×AH+)]…

Q: 1) List 6 sources of uncertainty in pH measurements with a glass/calomel electrode system

A: As per rules only 1 question can be answered. 1) The majority of sources of uncertainty arise…

Q: What is the aim of submerging the electrode in a potassium chloride solution? Must this be stored in…

A: Potassium chloride (KCl) goes about as a wellspring of chloride particles for the anode. The upside…

Q: How long will it take to plate out 4.9 g Ni from aqueous Ni2+ with a current of 113.1 A?

A:

Q: 6. Upon operation of the hollow cathode lamp at high current the intensity of the produced beam…

A: The operation of the hollow cathode lamp is in the following fashion: i) The positively charged…

Q: Calculate the potential of a platinum electrode immersed in a solution of KBr 0.0100F and 1 x10-3F…

A: Reaction: Br2 (aq) + 2e- ↔ 2Br- Nernst equation: E=E∘ -0.0591nlogBr-2Br2

Q: Calculate the elecytomotive force (in volts) registered by an electrode immersed in a solution…

A: We have find out electromotive force.

Q: Write the reaction taking place on the electroplating cell of nickel and graphite electrodes

A:

Q: A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode…

A: The detailed solution of the given question is done below in step 2. Here it is important to note…

Q: 7. Calculate the potential of a cadmium electrode immersed in a 0.0100 M Cd2+ solution.

A: Interpretation- To determine the potential of a cadmium electrode immersed in a 0.0100 M Cd2+…

Q: What is the difference between an active and an inactiveelectrode? Why are inactive electrodes used?…

A: Active electrodes affect the cell reaction while inactive electrodes do not take part or affect the…

Q: How long does it take to deposit a coating of gold 1.00 μm thick on a disk-shaped medallion 4.00 cm…

A: Introduction :  According to the Faraday first law of electrolysis, the amount of chemical reaction…

Q: What are the main components of fluoride ion-selective electrode?

A: The three main components of making a measurement at an ISE are an inner reference, or standard,…

Q: applied potential difference of 0.275 V

A:

Q: 5. Iron and Cadmium are coupled together in a poorly designed component. (a) What is the likely…

A: Given: Iron and cadmium couple.

Q: Calculate the potential of a platinum electrode in contact with a solution containing 0.1 M VO2* 0.1…

A:

Q: A glass/calomel electrode system was found to develop a potential of -0.096 V when used with a…

A: pH of a solution helps to determine the hydrogen ion concentration in the solution. pH =-log[H+]…

Q: What are the electrochemical technique used in fluoride ion-selective electrode?

A: Ion selective electrode (ISE) is an analytical technique used to determine the activity of ions in…

Q: Write the equation showing the effect of concentration on the electrodepotential.

A: Electrochemistry as the name suggests deals with the chemical reactions which involve electron…

Q: The same cell was used to study 0.100 M NH4CI (ag), and the measured resistance was 28.50 ohms.…

A: The molar conductivity of any solution is given as - Molar conductivity = (K x 1000)/M   where, M =…

Q: When the difference in pH across the membrane of a glass electrode at 25C is 4.63 pH units, how…

A: The pH is the negative logarithm of hydrogen ion concentration. Voltage and pH relation can be given…

Q: Given the following electrode systems and their electrode potentials, Ca2+(aq)  + 2e  ➡  Ca(s)…

A: Electrochemistry is a branch of science that deals with the movement of the electrons to produce…

Q: What would the potential of a standard hydrogen electrode (S.H.E.) be under the given conditions?…

A: Standard hydrogen electrode:  A Standard Hydrogen Electrode (SHE) is an standard electrode that is…

Q: determine the potential of the hydrogen electrode immersed in an acidic solution with pH = 3.5

A: The reduction potential of a half cell electrode can be determined by using Nernst equation . E = E°…

Q: When a fluoride selective electrode was immersed in a solution that is 1.0 x 10-4 M in F-, the…

A: Answer - The correct option is (c) -59 mV Solution -

Q: In a standard hydrogen electrode: A) delta G°<0 B) delta G°>0 C) delta G°=0?

A: C) delta G°=0

Q: A glass electrode is universally used because it is simple to operate and it is not easily poisoned.

A: Glass electrode is a type of electrode, i.e. made up off dopped glass membrane and coated the silver…

Q: harrivtry (b) Draw and explain the cyclic voltammo- gram of Fe(n5-C5H5)2 in CH₂Cl₂, where [NBu4]…

A: The correct answer is given below

Q: 6. The corrosion potential of mild steel in a deaerated solution of pH = 2 is -0.64 V versus…

A: The reactions that occur in the given cell are stated below:

Q: Calculate the hydrogen overpotential of an iron electrode and the corrosion current of iron for pH…

A: Hydrogen over potential means when there is potential difference between an electrode and reversible…

Q: use the shorthand notation to describe a cell consisting off a saturated calomel reference electrode…

A: ESCE = 0.244 V It is the saturated calomel reference electrode by convention

Q: In some voltametric experiments, microelectrodes are used in the absence of a supporting electrolyte…

A: Voltammetry is an electroanalytical technique where the information about an analyte is obtained by…

Q: A current is passed through 500.0 mL of a solution of Cal2. The following electrode reactions осcur:…

A: Given data, Volume of solution = 500mL Moles of I2 = 35.7mmol The overall reaction for the given two…

Q: Why is SHE considered as the standard electrode?

A: Standard hydrogen electrode abbreviated as SHE. It is used as a reference electrode on all half cell…

Q: 7) How long would it take to electrodeposit all the Cu2+ in 0.250 L of 0.210 M CuSO4 solution with…

A: The number of moles of Cu+ ions is calculated as,

Q: 2 In an electrolysis of copper sulphate between copper electrodes the total mass of copper deposited…

A:

Q: How long does it take to deposit a coating of gold 1.00 µm thick on a disk-shaped medallion 4.00 cm…

A:

Q: voltage (V) if an unknown metal (M) was electrodeposited from an aqueous solution containing M2X1…

A:

Q: explain types of reference electrode?

A: A reference electrode is an electrode which has a stable and well-known electrode potential. The…

Q: What mass of platinum can be played onto an electrode dipped in Pt(NO3)2 solution if a 2.5 current…

A: The reaction taking place will be  Pt2+  + 2 e- ----&gt; Pt  This is because we have Pt2+ in…

Q: What is the forward rate constant (k) for a single electron reduction at an electrode set to 0.35V…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.