A 0.0810 mL sample of an acid was titrated with electrogenerated OH-. It took 215s at a constant current of 0.140A to reach a phenolphthalein end point. Determine the molarity of the acid.

Q: How long would it take to titrate 1.00 mmol H2S with a current of 100.0 mA?

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Q: A solution of HClO4 was standardized by dissolving 0.4008 g of primary-standardgrade HgO in a…

A: In titration process the titrant is consists of standard solution having known concentration. Here…

Q: How much time (in hr to two decimal places) must pass to produce 50.0 g of gold using a 6.50 A…

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Q: um permang

A: The balanced ionic equation for the reaction between potassium oxalate and potassium permanganate…

Q: A 50.00 mL 0.750 M KOH(aq) is added to a 100.0mL 0.500 M CH;COOH/NACH;CO0 buffer. What is the…

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Q: A 60.0 mL solution of 0.00750M OSCI,3- in 1 M HCI was titrated with 0.0300 M IrCl,2- to give OsCl,2-…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Consider the following cell: Cu(s) | CuCl2(0.065 M) || FeCl2(0.035 M) | Fe(s) a) Using the standard…

A: a) Reduction half cell reaction ( Cathode): Fe2++2e-→Fe    Ecell=-0.45 Oxidation half cell reaction…

Q: (c) 0.02 M CH3COOH solution has a resistance of 240 ohm with a cell constant of 0.366 cm!. Calculate…

A: The given data contains, Molarity of acetic acid = 0.02 M. Resistance = 240 ohm. Cell constant =…

Q: A mixture of NaBr, Nal and NaNO3 weighs 0.6500 g. With AgNO3, a precipitate of the two halides is…

A: To determine the percentage of NaNO3 in the original sample, we need to calculate the mass of NaNO3…

Q: Which of the following statements is incorrect? O In metallic indicator electrodes, the potential…

A: A multiple choice question based on electrochemistry that is to be accomplished.

Q: A total of 4 mL of a solution containing 1,222 mg/mL of cyclohexene was titrated coulometrically. If…

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Q: The concentration of NO3- in a water sample was determined using ion-selective electrode. A 25.00 mL…

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Q: 5. A solution of 0.100 MHCI and a solution of 0.100 M NGOH 14 are prepared. A 40.0 mL sample of one…

A: (a). Answer-  The solution in the beaker was the 0.100 M HCl because the initial pH was 1 (the pH of…

Q: 1. Calculate the theoretical potential of the following cells. Indicate whether the reaction will…

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Q: The emf of the following cell at 25° is 0.445V Pt, H2(1 atm)/H* (test solution) //…

A: To calculate the emf (E) of the unknown solution, the following formula is applied. E=-0.0591×pH…

Q: A 17.1769 mL sample of an acid was titrated with electrogenerated OH-. It took 617s at a constant…

A: Given: Volume of acid solution = 17.1769 mLCurrent = 0.216 ATime = 617 seconds

Q: C: Determination of Ka of a Weak Acid: 25 mL of 0.01 M acetic acid solution is mixed with 25 mL of…

A: We would use Henderson Hasselbalch equation to calculate pKa and using pKa we can calculate Ka.

Q: The emf of the cell.15 Pt, H2(1bar)|HCI (0.1m)|| * HCI(0.2m)|H2(1bar),Pt

A: This is a concentration cell

Q: Write a balanced net ionic equation for the overall cell reaction repre- sented by (a) Cd Cd²+ ||…

A: An ionic equation is a chemical equation in which the electrolytes in aqueous solution are expressed…

Q: How does calculation of the electrode potential of the system at the equivalence point differ from…

A: Let us consider the redox titration of iron (II) and cerium (IV). The reduction half reaction is:…

Q: 1. , A standard 0.0100 M solution of Na is required to calibrate an ion-selective electrode method…

A: A primary standard is a solution having a fixed amount of concentration of solute. This is a pure…

Q: Calculate the % relative error in hydronium ion concentration by using concentrations instead of…

A: Given Ka, Acetic Acid → 1.75×10-5 Ammonium ions → 5.70×10-10 Chloroacetic Acid → 1.36×10-3…

Q: Calculate the concentration of an unknown solution that produced a current of 4.78 microA. The…

A: As given that unknown solution produced a current of 4.78 micro A.Since there is a relationship…

Q: 4. 5 mL of 0.006 M arsenite (As2O3) solution is subjected to coulometric titration as described in…

A: In the given question we have to calculate the time to reach the end point.The following quantities…

Q: 1- Calculate the theoretical tendency of Zinc to corrode with evolution of hydrogen, when immersed…

A: Solution:- Given data => ZnCl2 = 0.001  pH = 2 To calculate theoretical tendency of Zinc. As we…

Q: Determine the potential of a platinum electrode (vs. SHE) when placed in a mixture of 0.00385 M…

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Q: solution of 0.100 M HCl and a solution of 0.100 M NaOH are prepared. A 40.0 mL sample of one of the…

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Q: Why do both Reference and Indicator electrodes need in Potentiometric titration

A: POTENTIOMETRIC TITRATION: A titration which is used to determine the amount of the given chemical…

Q: Q3/ Calculate the pH of a solution containing (0.1 M) of [Fe+] [Mg+J. knowing that Ksp is for…

A: There are two sparingly soluble hydroxide.   Mg(OH)2 and Fe(OH)3.   When both are dissolved in the…

Q: Calculate the initial concentrations for the Fe3+ and SCN- for the data provided in the table

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: calculate the pH-value and the activity of all ions in a 0.01 molL-1 MOH solution. MOH shall be a…

A: pH is the measure of the acidity or basicity of the solution. Ph scale has range in from 1 to 12. If…

Q: The concentration of NO3- in a water sample is determined by a one-point standard addition using a…

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Q: Calculate the potentials for each of the following cells. Indicate whether the reaction will proceed…

A: To calculate potential of cell, we would use Nernst Equation.  For this we would first write half…

Q: 4. Calculate the emf of the cell Co|Co2+||Ni2+|Ni If the concentrations are [Ni2+] = 1.0 M and…

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Q: A soluion of 10.0 mL of 0.0500 mol/L AgNO3 is titrated with 0.0250 mol/L NaBr in the cell:…

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