Calculate the concentration of an unknown solution that produced a current of 4.78 microA. The current went up to 6.54 microA after 35 mL of the unknown was added to 0.300 mL of 0.0627 M standard solution.

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Q: The standard addition method is used to determine the concentration of vitamin C in apple juice by…

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Q: The concentration of a solution was determined by measurement with a sodium ion-selective electrode.…

A: To calculate the concentration of Na+ ion concentration in the original solution.

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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: A 215-mL sample of a 0.500 M NaCl solution with an initial pH of 7.00 is subjected to electrolysis.…

A: Gien: Volume of a sample = 215 mL NaCl = 0.500M pH = 7 After 15 minutes, Volume removed = 10 mL HCl…

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Q: The electrochemical cell: SCE||H+ (a=x)|glass electrode has a potential of 0.2094 V when the…

A: The electrochemical cell: SCE||H+(a=x)|glass electrode pH of Buffer = pH(s) = 4.006 Potential of…

Q: An unstirred solution of 2.00 M NaCl was electrolyzed for a period of 21.5 min and then titrated…

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Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…

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Q: 0592 XM Ecell= 0 131

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Q: What is the electrode potential of an electrode consisting of Zinc metal in a solution in which the…

A: Given, The electrode potential of an electrode consisting of Zinc metal in a solution in which the…

Q: The moving boundary method was applied to a solution of GdCl3 33.27 mmol/L at 25°C using LiCl. Using…

A: In the moving boundary method, the speed of displacement of the boundary is measured between two…

Q: How many grams of Ag would be deposited from an aqueous solution of Ag+ with a current of 2.534 A…

A: Molar mass of Ag = 108g/mol Reaction takes place:- Ag+ + e-  ------> Ag  current , I = 2.534 A…

Q: An aqueous copper (II) chloride solution is electrolyzed for a period of 156 minutes. Using a…

A: We have given that  An aqueous copper (II) chloride solution is electrolyzed for a period of 156…

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

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A: Two numerical problems based on cell potential, which are to be accomplished.

Q: Ascorbic acid (vitamin C) in a 50.0-mL sample of orange juice was analyzed by an electrochemical…

A: Given: Initial Volume of juice(ascorbic acid) Vi = 50 mL Volume of Standard ascorbic acid solution…

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A: The standard hydrogen electrode, is a oxidation - reduction electrode which is the base line of the…

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Q: How many seconds are required to deposit 0.223 grams of lead metal from a solution that contains…

A: Given that, 0.223 grams of lead metal (Pb) is deposited from a solution that contains Pb2+ ions and…

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A: Metal electroplated than mass of metal depend current , equivalent weight of metal and time.

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Q: A zinc rod is dipped in 0.1 M solution of ZnSO4. The salt is 95% dissociated at this dilution at 298…

A: The following electrode reaction takes place : Zn(aq)2++ 2e-→Zn(s) According to Nernst  equation (at…

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A: In electrochemistry, the Nernst equation is an equation that relates the reduction potential of an…

Q: rship X Report - Go X tActivity.do?locator=assignment-take Grammarly X NGLSync Pc X OWLv2 | OnliX +…

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Q: Ascorbic acid (Vitamin C) in a 50.0mL sample of orange juice was analyzed by an electrochemical…

A: Given:Initial Volume of juice(ascorbic acid) Vi = 50 mLVolume of Standard ascorbic acid solution…

Q: A cell consisting of a saturated calomel electrode and a lead ion electrode developed a potential of…

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Q: How long must a current of 2.15 A be applied to 35.0 mL of a 0.247 M AICI3 solution in order to…

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Q: The Na + concentration of a solution was determined by measurements performed with a sodium ion…

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Q: For ferricyanide determination by voltammetry, 20 mL of non-electroactive KCl solution is added to…

A: Molarity = No of moles / Volume (L) Also, No of moles = Molarity * Volume (L)

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Q: The limiting current of lead in an unknown solution is 5.60 μA. One milliliter of a 1.00 × 10-3 M…

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Q: The F− concentration of a solution was determined by measurements with a liquidmembrane electrode.…

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Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…

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Q: What mass of Cu(s) is electroplated by running 17.5 A of current through a Cu²“(aq) solution for…

A: Part A :  First we would Calculate charge using current and time.  From charge , we would calculate…

Q: An unstirred solution of 2.00 M NaCl was electrolyzed for a period of 28.9 min and then titrated…

A: Concentration of NaCl = 2M Time duration of electrolysis = 28.9min Concentration of HCl = 0.314M…

Q: The F- concentration of a solution was determined by measurements with a liquid-membrane electrode.…

A: Given information, Electrode system potential when immersed in 25.0 mL of sample = 0.5021 V…

Q: When a ruthenium chloride solution was electrolyzed for 500. s with a 120 mA current, 31.0 mg of…

A: According to Faraday first law , in electrolysis process weight of deposition of substance is…