Explain how electrical current and potential difference differ.

Q: In the industrial "chlor-alkali" process, pure chlorine and sodium hydroxide are produced by…

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Q: What is an electronic current

A: The conventional current is flow of positive charge.

Q: Explain why your actual (measured) voltages may not compare with the theoretical values calculated…

A: Actual voltages are the voltages that are measured during the reaction. The theoretical voltages are…

Q: Which of the following is the unit for measuring electric current? O a volt O b ampere meter ohm

A: Current is flow of electrical charge carries usually electrons . It is denoted by symbol I.

Q: Write a balanced chemical equation for the standard formation reaction of solid vanadium(V) oxide…

A: Standard formation reaction of a compound is that in which only those elements are used in reactants…

Q: What are the different methods of changing the electrochemical potential?

A: there is various methds of this. i can say the names,but if i try to explain each process this will…

Q: Nalculate the cell potential of a cell operating

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Q: Ecell= 0.225 volts E-0.150 volts cell T= 474 Kelvin n=1 R= 8.314 J/mol K F= 96500 C/mole electrons…

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Q: Which unit is used to measure the magnitude of electricalcurrent? Which unit is used to measure the…

A: Electrical energy is the energy derived from the movement of electrons. In electrical energy, the…

Q: Q1 (a) Read the following sentences carefully and briefly justify the answer: (i) Combustion of…

A: (i) Benzene when heated in the presence of oxygen (air) generates carbon dioxide and water. Benzene…

Q: (a) State and explain Kohlrausch law.(b) How much electricity in terms of Faradays is required to…

A: In physical chemistry, there is a law named as Kohlrausch law which helps in the detection of many…

Q: culate the potential of an aluminum electrode immersed in C satu

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Q: Cathode is ... terminal. * Negative. Positive.

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Q: Suppose a current of 80. A flows through a copper wire for 136. seconds. Calculate how many moles of…

A: Given-> Current (I) = 80 ampere Time (t) = 136 second

Q: Calculate the maximum cell potential under these conditions. Show your work. Ecell = (round to 2…

A: we have to calculate Ecell

Q: which metal Mg or Fe burned at the highest temperature? State the evidence that led to your…

A: Given : Different type of metals.  To find : which metal burns at high temperatures  Solution : As…

Q: An experiment is set up to determine the best voltage for electroplating tin onto iron. Iron plates…

A: 1. Independent variable is Voltage 2. Thickness of layer 3. Iron plate 4. Electrolyte 5. Temperature

Q: a 0.4815 g sample of potassium iodide yields 0.7562 g of silver iodide gravimetrically, determine…

A: Mass of potassium iodide = 0.4815 g

Q: ne electrolysis

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Q: 1 A sample of a Fe2+ solution requires 26 mL of 0.0200 M K2Cr2O7 for a reaction  in which Fe2+ is…

A: Normality and molarity are two unit of concentration. Here we required to find the  normality of…

Q: Explain why battery-powered electronics perform poorly in low temperatures.

A: A battery is a device consisting of two or more electrochemical cells, which convert chemical energy…

Q: Boundary potential is the potential around electrodes of the fourth kind (redox electrodes).

A: Electrodes are commonly used in electrochemical cells. The electrode, is any substance that is a…

Q: How many coulombs of charge pass through a cell if 1.7 amperes of current are passed through the…

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Q: Suppose 630. mmol of electrons must be transported from one side of an electrochemical cell to…

A: The given problem can be solved by using the formula given below as; Current I = Charge qtime t…

Q: Why does hammering a piece of sheet metal cause the metal to heat up?

A: Metal are the substance which allows to pass current through them. Metals are good conductor of…

Q: Suppose a current of 90. A flows through a copper wire for 145. seconds. Calculate how many moles of…

A: Given- Current ( I ) = 90 Time ( t )= 145 seconds Find mole = ??

Q: Explain the Stoichiometry of Electrolysis?

A: The weights of substances formed at an electrode during electrolysis are directly proportional to…

Q: Determine AG° for the following reactions.

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Q: Calculate the value of Faraday number based on the data Provided  Data Provided Mass…

A: Given : Mass produced= 1.2806 g  Current= 1 amp Time= 58min36sec=3516 sec

Q: The gold plating of a ceramic figurine requires a total of 4.96 g of solid gold. If the current…

A: Given,  Mass of gold required, w = 4.96 g  Current passed, I = 11.8 A  Molar mass of gold = 197…

Q: The amount of substance formed or consumed at the electrodes is proportional to the quantity of…

A: Faraday's  law -  It states that the induced  voltage  in circuit is proportional to the rate of…

Q: Electroplating a metal is an example of physical change.

A: Electroplating changes physical, chemical and mechanical properties. But electroplating a metal is…

Q: What is the difference between an electrolyte and a chemical device in The method of work and device…

A: Device Components are disposable part that work in conjunction with the device to perform a…

Q: Why mercury cell gives the constant voltage.

A: Mercury cell is electro chemical cell and  we use a electrolyte KOH  in this cell because it happend…

Q: Suppose a current of 520. mA flows through a copper wire for 27.0 minutes Calculate how many moles…

A: Given information: Time (t) = 27.0 minutes Current (I) = 520 mA

Q: When can a cell generate an electric current?

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Q: Define electrochemical series.

A: Electrochemical series :  Depending upon the redox potential , a series of reduction reactions are…

Q: Suppose a current of 0.950A flows through a copper wire for  86. seconds. Calculate how many moles…

A: The quantity of electric charge that flows through the given solution or electrical wire is equal to…

Q: What will happen to the fermi energy when two identical metals are joined together?

A: When two metals join together, the electrons will flow from the metal which have high fermi level to…

Q: Consider electrode potential data given in Question 4 (c). Predict which two electrodes combination…

A: Standard EMF of an electrochemical cell is given by the equation: Eocell = Eocathode - Eoanode…

Q: What happens if you have interchanged the assigned anode as cathode and the cathode as anode in…

A: The electrode on which reduction takes place is called cathode and on which oxidation takes place is…

Q: For the first blank select an answer with a (1) in front. For the second blank, select an answer…

A: Ans. (1) The expected sign  for voltage = +(positive) According to electrical engineers, in an…

Q: What is the standard state of copper?

A: Standard state of an element is state /phase they exist at 25°C temperature and 1 atmoshperic…

Q: what is cell potential?

A: Potential is the tendency of redox system wheather it will take electrons or loose electrons.  A…

Q: Faraday's first law of electrolysis,

A: Faradays first electrolysis Law states that the quantity of reaction taking place in terms of mass…

Q: How many coulombs of charge pass through a cell if 1.9 amperes of current are passed through the…

A: Given: Cell current, I = 1.9 A Time, t = 20 min= 20 x 60 = 1200 sec Because 1 min = 60 sec Charge,…

Q: At 125 °C, 1 mol Oz and 2 mol H2 in a chamber have a total pressure of 3 atm. A current is run…

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Q: For the first blank select an answer with a (1) in front. For the second blank, select an answer…

A: The solution is given below -