Why mercury cell gives the constant voltage.

Q: Use reduction potentials to predict whether a redox reaction is spontaneous?

A: Given term,  Spontaneity of a redox reaction

Q: How many grams of magnesium are produced if a current of 4.50 A is passed through the electrolysis…

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Q: How many moles of oxygen, O2, will be produced by the electrolysis of water with a current of 1.5…

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Q: The reactions occurring at (i) anode, (ii) cathode, during working of a mercury cell. Why does the…

A: A voltaic cell is an example of electrochemical cell. It uses a chemical reaction to produce…

Q: What minimum amount of voltage would you need to apply to successfully run the electrolysis of…

A: anode: 2H2O(l) ⟶ O2(g) + 4H+(aq) + 4e−      E∘anode = +1.229 V cathode: 2H+(aq) + 2e− ⟶ H2(g)…

Q: Convert 1.6 Faradays to Coulombs.

A: The question is based on the concept of unit conversion. we have to convert the given quantity of…

Q: An electrolytic cell contains inert electrodes in a solution of acidified copper(II) nitrate. Write…

A: Two platinum inert electrodes are dipped in Cu(NO3)2 aqueous solution. One electrode is connected to…

Q: Give the condition for Daniell Cell in which there is no flow of electrons or current or we can…

A: To find: The condition for Daniel cell  in which there is no flow of electrons or current or we can…

Q: If the given statement is true, write T. Otherwise, write F and explain why it is false. 1) The…

A: Given the statement: The electrons in a galvanic cell can be transferred through a wire, making it…

Q: What volumes of H2(g) and O2(g) at STP are produced from the electrolysis of water by a current of…

A: Amount of charge (Q) = I . t  where I = current and t = time

Q: What is the use of Platinum foil in the hydrogen electrode?

A: It is a type of gas electrode which we use as a reference for every other electrode to calculate…

Q: A concentration cell similar to the one shown is composed of two Mg electrodes and solutions of…

A: Oxidation is lose of electrons. Reduction is gain of electrons. Reactions where oxidation and…

Q: How many amperes of current needs to be passed through molten Sodium chloride to produce 2.4 g of…

A: Faraday's First law,           m α Q          m = eQ               = ect               = E96500ct…

Q: How many moles of oxygen, O 2, will be produced by the electrolysis of water with a current of 1.5…

A:

Q: The Ni-Cu cell has an observed voltage of +0.60 V under standard conditions, indicating that…

A: A  spontaneous reaction is the one that occurs on its own without needing any external source of…

Q: cathode when coupled with a SHE in a galvanic cell. (Hint: What units are required Calculate the…

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Q: What unit is used to measure the magnitude of electrical current? What unit is used to measure the…

A: The unit used to measure the magnitude of electrical current is Amperes.The unit used to measure the…

Q: A factory wants to produce 1.00 × 10 kg barium from the electrolysis of molten barium chloride. What…

A: Electrolysis is a chemistry and industrial process that uses direct electric current (DC) to drive a…

Q: What is the minimum voltage required to drive the reaction?

A: Standard reduction potential can be calculated as follows:

Q: Calculate the number of moles of electrons driven through an electrolytic cell with 3109 A of…

A:

Q: What unit is used to measure the magnitude of electrical current?

A: Rate of flow of charge is known as current.

Q: Calculate the number of moles of electrons driven through an electrolytic cell with 3097 A of…

A:

Q: A constant current of 90 mA is passed for 22 minutes into an electrolysis cell. How much electrical…

A: Charge passing per unit time is known as  electric current.

Q: 4.) What mass of silver can be plated onto an object in 45 minutes at 9.0 A of current?

A:

Q: A concentration cell similar to the one shown is composed of two Mg electrodes and solutions of…

A: A electrochemical cell is used is used convert chemical energy to electrical energy it involves  a…

Q: In a Galvanic cell, a salt bridge is often used. Explain why this is necessary. Describe the…

A: In a Galvanic cell, a salt bridge is often used to maintains electrical neutrality within the…

Q: Why EMF of the cell increases when the concentration of the solution at the anode decreases? Why EMF…

A:

Q: What is electrode potential?

A: Electrode potential is to be defined.

Q: Calculate the cell potential given the standard reduction potentials for the half reactions of the…

A: Solution: We know at cathode reduction reaction occurs, so the half cell having highest value of…

Q: Enter your answer in the provided box. Copper is purified by electrolysis. A 4.75-kg anode is used…

A: Given:  Mass of anode = 4.75 kg = 4750 gm  Current (I) = 37.8 A

Q: Write the anode and cathode reactions occurring in a commonly used mercury cell. How is the overall…

A: The anode and cathode reactions occurring in a commonly used mercury cell and the overall reaction…

Q: Write the cell notation based on the description of the following information: Iron (III) ions are…

A: Given : Iron (III) ions are reduced to iron (II) in presence of platinum i.e Pt electrode. And tin…

Q: What mass of copper could be electroplated on the cathode in an experiment were an average of 200 mA…

A: Charge passing through the cell is determined using the given formula.

Q: What type of a battery is lead storage battery? Write the anode and cathode reactions and the…

A: Storage battery is the cell which can be recharge by passing electric current and used again and…

Q: For the electrolysis of an aqueous solution of SnSO, with aluminum electrodes at standard state co…

A: Given data: Redox reaction with SnSO4 with aluminium electrode. Net redox reaction: ? voltage…

Q: For each set of half reactions, write the overall balanced equation for the reaction and calculate…

A: The question is based on the concept of electrochemistry. we have to write the net ionic  equation…

Q: Using the provided standard reduction potentials, which of the following cells is an example of a…

A: One with smaller or negative value will be anode and one with positive will be cathode .

Q: 3. Consider the following galvanic cell:

A:

Q: How many seconds will it take to plate out 2.19 grams of chromium metal from a solution of chromium…

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Q: A factory wants to produce 1.0 x 10³ kg Barium from the electrolysis of molten barium chloride. What…

A:

Q: A factory wants to produce 1.00 x 10 kg barium from the electrolysis of molten barium chloride. What…

A:

Q: Suppose 830. mmol of electrons must be transported from one side of an electrochemical cell to…

A: We have to transport electron from one side to another side, using current flow. We are given ;…

Q: When 1.00 mole of chlorine gas is reduced to chloride ions in an electrolytic cell, what charge (in…

A: Reduction of 1 mol of chlorine is given below, Number of moles of electrons is 2.

Q: Would you expect a mercury cell to give a constant voltage and why?

A: Yes, mercury cell provides a constant voltage throughout life. This is because there are no ions…