A digital watch battery draws 0.40 milliamperes of current, which is provided by a mercury battery whose net reaction is: HgO(s) + Zn(s) → ZnO(s) + Hg(l) If a partially used battery contains 2.50 g of each of these four substances, for how many hours will the watch continue to run?

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A:

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: The approach to this problem is to find the limiting reagent and then calculating the charge.

Q: A voltaic cell is constructed by immersing a strip of copper metal in 1.0 M CusO, solution and a…

A: Given: Cell is made up of CuSO4|Cu and Al2(SO4)3|Al half.

Q: Chlorine, Cl2, is produced commercially by the electrolysis of aqueous sodium chloride. The anode…

A: Current =5.00×10^2A Mass of chlorine=4.18kg=(4.18×1000)g=4180g

Q: This galvanic cell uses the reaction: Zn(s) + 2 Ag*(aq) 2 Ag(s) + Zn2+(aq) The initial…

A: The cell reaction given is, => Zn (s) + 2 Ag+ (aq) -------> 2 Ag (s) + Zn2+ (aq) Given :…

Q: how many hours will the watch continue to run?

A: A device that is used to store the chemical energy and also there conversion takes place to…

Q: / minutes

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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…

Q: Find the emf of the concentration cell at 25.0 ºC in which the concentration of Ag+ ions in the…

A: At 25°C, emf of the concentration cell is calculated as…

Q: an irregularly shaped metal part was made from a particular alloy was galvanized with zinc using a…

A: Given The amount of current (I) is 2.15 A The time is 2.2 hours The density of zinc is 7.410 g/cm3…

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: Moles of HgO and Zn is calculated as shown,

Q: In a Li-ion battery the composition of the cathode is LiCoO2 when completely discharged. On charging…

A: For a Lithium ion battery the composition of the cathode when the battery is fully discharged is…

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: In an car battery recharging occurs when the car is running by supplying a current to the battery.…

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Q: A 220 mL sample of a 0.500 M NaCl solution with an initial pH of 7.00 is subjected to electrolysis.…

A:

Q: Write a balanced net ionic equation for a redox reaction that results in the formation of potassium…

A: Here we have to write balanced net ionic equation for above given reaction-

Q: What is the maximum voltage that can be produced by a galvanic cell with the following electrodes?…

A: The objective of the question is to calculate the maximum voltage that can be produced by a galvanic…

Q: an irregularly shaped metal part was made from a particular alloy was galvanized with zinc using a…

A:

Q: How many minutes does it take to plate 222.3 g of chromium onto a car part using 14.27 A of current?…

A: We have 222.3 g of Cr plating, current use is 14.27 A, we have to calculate the time taken for…

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.