Zinc is to be used as an internal standard for the polarographic analysis of thallium. A standard solution containing twice the concentration of zinc as Thallium has a diffusion current of 1.89 µA for Ti and 3.50 µA for Zn. A 10.0g alloy was dissolved in 500 mL, 25 mL of this solution was mixed with 25 mL of 1.0 x 10-3 M Zn 2+ solution. The diffusion currents of this final solution are 18.2µA for Tl+ and 14.5µA for Zn+. Calculate % Ti in the sample analysed

Q: Use the Debye-Hückel equation to calculate the activity coefficient (y) for each of the ions at the…

A:

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu2SO4 solution onto an electrode with an active…

A: Copper is deposited as Cu2++2e-=Cu . Which means we require 2 mole of electrons= 2×96475 C of charge…

Q: From the following data find the percentage of Fe in a sample of crude ferric chloride weighing 1.00…

A: To calculate Normality of Iodine: Given: Volume of Iodine required = 7.85 mL

Q: A 0.9352g sample of ore containing Fe³+, Al³+ and Sr²+ was dissolved and made up to 500.00 mL. The…

A: A numerical problem based on concentration terms that is to be accomplished.

Q: An unknown amount of copper(II) ions produces a faradic current of 12.3 A on a normal pulse…

A:

Q: Consider the electrode/water based solution interface Pt/Ag+ (0.0001 M), Cu2+ (0.01M), Pb2+ (0.1 M),…

A:

Q: For the reaction 3Cu(s) + 2Au3+(aq)  3Cu2+(aq) + 2Au(s), Eocell = 1.16 V. Calculate the cell…

A:

Q: The following cell was found to have a potential of 0.2897 V:SCEIIMg2+(a = 3.32 * 10^-3M)membrane…

A: a) The pMg of the solution is calculated by using following expression.

Q: Calculate the cell potential for the reaction as written at 25.00 °C25.00 °C, given that…

A: Given-> [Cr2+] = 0.790 M [Fe2+] = 0.0190 M T = 25°C

Q: A pH meter is calibrated using a pH 4.00 buffer with 174.48 mV, pH 7.00 with 0 mV and pH 10.0 buffer…

A: Given: At 174.48 mV, pH = 4 At 0 mV, pH = 7, At -174.48 mV, pH =10.0 We have to calculate molar…

Q: Determine the potential of a platinum electrode (vs. SHE) when placed in a mixture of 0.00207 M…

A: Since you have asked multiple question, we will solve the first question for you as per our…

Q: A potentiometric titration of a 0.278 g sample of FeSO4.7H₂O salt, in acidic medium, with a 0.011 M…

A: Solution - According to the question - Given -  Given graph the equivalence point is observed at 15…

Q: You are given a 200-mL sample of surface water from Lake Ontario, and asked to determine the…

A: Given, Volume of water sample = 200mL Volume of K2Cr2O7 = 0.2M Volume of K2Cr2O7 = 15.0 mL Time of…

Q: Calculate the ionic strength of 0.5M Al2(SO4)3.

A: Al2(SO4)3 ----> 2Al3+ + 3SO42- 0.5 M                1 M         1.5 M Ionic strngth = 1/2 ΣCiZi2…

Q: 15. The mobility of a NO3 ion in aqueous solution is 7.40 x 105 m² V-¹ s¹ at 25°C. The potential…

A:

Q: Zinc may be directly leached from zinc-lead sulphide concentrates by reaction with sulphuricPbS(s) +…

A: The objective of this question is to calculate the concentration of Zn (in g/L) in the solution…

Q: Calculate the solubility of Ca(OH)2(s) (Ksp = 1.6 x 10–15) in an aqueous solution buffered to pH…

A: Since the pH = 8 = 14 + log[OH-] where [OH-] = concentration of OH- ions  => [OH-] = 10-6 M Since…

Q: Calculate the potential of the copper electrode immersed in a 0.0750 M NaCl solution saturated with…

A: Given that, Concentration of NaCl solution = 0.0750 M Standard reduction potential of Copper,…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Electrical energy = 0.1826 kWh

Q: If 22.29 mL of 0.02901 M EDTA is required to tirate 100.0 mL of spring water, then calculate the…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,…

Q: 3. At 298 K, E cell for the Daniell cell is 1.10 V. Determine the equilibrium ratio [Cu²+]/[Zn²+].…

A:

Q: Calculate the mass of metal that is plated when an electrolytic cell consisting of aqueous…

A: 1.) Using given time and current we would Calculate charge . Then using charge we can calculate the…

Q: The cumulative formation constants for the reaction of Co21 with ammonia are log b1 5 1.99, log b2 5…

A: Concentrated ammonia reacts with cobalt (II) ion forming a metal complex. The reaction takes place…

Q: ELECTROCHEMISTRY: Given the line notation: Pt(s) |X*(aq)- x2+ (aq) || Y3+ *(aq) I Y(s) where: x2+ +…

A:

Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…

A: Faraday's first law of electrolysis states that the amount of substance deposited or liberated at an…

Q: 50.00 ml of 0.1000 M Fe(CN)64- solution is titrated with 0.05000 M Tl3+ solution potentiometrically…

A: We can solve this by nernest Equation

Q: was titrated in acidic medium, equal

A: Let molarity of KMnO4=xKMnO4+FeSO4 -> Fe2(SO4)3+Mn2+n=5          n=1

Q: Calculate the theoretical specific conductance (K) of the following mixtures: 7.1 2 mL of 0.02 M HCI…

A: To calculate the theoretical specific conductance ( k ) of the mixtures given, you need to follow…

Q: Ammonium iron(II) sulfate crystals have the following formula: (NH4)2SO4.FeSO4.nH2O . In an…

A: The objective of the question is to determine the value of 'n' in the formula of Ammonium iron(II)…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Answer: Given current efficiency is 91%, therefore actual current passed…

Q: A sample of zinc corroded homogeneously in an aqueous solution, and the corrosion current density…

A: Corrosion is a process in which the surface layer of metal are deteriorated by reacting with…

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Given: Current = 6.82 A Time passed = 10 hour Power = 0.179 KWh. Current efficiency = 91 %

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: Calibration data for a bromide ion-selective electrode (ISE) was collected and [Br¯] (M) Potential…

A: [Br-] pBr = -log[Br-] Potential (mV) 0.300 0.523 -21.1 0.0300 1.523 36.7 0.00300 2.523 95.5…

Q: 89. The differential pulse polarogram of 3.00 mL of solution containing the antibiotic tetracycline…

A:

Q: 3. The passage of a current of 0.750 A for 25.0 min deposited 0.369 g of copper from a Cuso,…

A: in this question, the amount of weight given is 0.369 g, and time is given 25.0 min  current is…

Q: Electrochemical solutions of MY and MX2 were prepared by successive dilutions and their resistances…

A: a) The strong electrolyte is MX2 and the weak electrolyte is MY. This can be determined by looking…

Q: Given the following cell at 25°C: CuļCuso4 (0.0200 M) || Fe2* (0.0200 M), Fe3* (0.0100 M), HCl (1.00…

A: The electrode potential of a cell represented as  Cu|CuSO4(0.0200 M) || Fe2+(0.0200 M), Fe3+(0.0100…

Q: A conductance cell was calibrated by filling it with a 0.02 mol L¹ solution of potassium chloride (K…

A:

Q: The conductivity of 0.20 M solution of KCl at 298 K is 0.025 S cm-1. Calculate its molar…

A: Welcome to bartleby!

Q: lon selective electrode (ISE) is an electrochemical device for the selective determination of the…

A: The Nernst equation is a fundamental concept in electrochemistry used to relate the electric…