three reasons why the measured voltages in lab may differ from the theoretical voltage

Q: Voltmeter Readings of Different Hypothetical Metals Metal | 1* 2nd 3rd Average Voltage, Standard…

A: Voltameter reading

Q: ELECTROCHEMISTRY: Copper was electroplated from a CuzsO4 solution onto an electrode with an active…

A: We will calculate charge supplied , then calculate volume of cu deposited to find thickness of cu.

Q: When calibrating a pH meter it is necessary to ___________. calibrate the electrode at the…

A: We have to use calibrating a pH meter, As the other test strategies don't give exact and exact…

Q: in a laboratory 250 ml of Potassium chloride (KCl) solution with concentration 0,005 mol/l is needed…

A: 250 mL of 0.005 mole/L KCl solution is prepared from a stock solution, having a concentration of 0.1…

Q: What specific material(s) is (are) used and what specific properties this (these) material(s)…

A:

Q: The corrosion rate of plate 100 cm of steel (Aromic massuss B45 g/mole, density 78 g/cm) is equal to…

A:

Q: ELECTROCHEMISTRY: Copper was electroplated from a CuzsO4 solution onto an electrode with an active…

A: Answer :-  Thickness Of Cu Deposited= 0.11  --------------------------------------------------------

Q: culate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueo ent…

A:

Q: calculate the average current used.

A:

Q: What is the measured voltage in Copper and Iron system? * 0.856 + 0.010 mV O 0.647± 0.010 mV O…

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

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cuzs04 solution onto an electrode with an active…

A:

Q: across 200 V battery, the total circuit resistance will be

A: As two bulbs are connected in series so, Bulb 1 resistance (R1)= V2/P=2002/100=400 ohm Bulb 2…

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu2SO4 solution onto an electrode with an active…

A: We will first find mass of cu deposited, then find volume of cu. Atlast we will find thickness of…

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu2sO4 solution onto an electrode with an active…

A:

Q: A factory uses electrolysis to generate calcium from molten calcium chloride. Their goal for a…

A: Charge of 1 mole of electrons= 96500 C  Atomic weight of Calsium= 40.078 Current. I= charge ÷time

Q: Calculate the expected voltage Cd | Cd+2 (0.00050M) ||  Cd+2 (0.69 M) | Cd

A: This is a type of concentration cell. Let us try to calculate its voltage. For concentration cell,…

Q: to generate a linear graph.  (Hint: take the Nernst equation and rearrange to a straight line…

A: A. If we draw the graph of the concentration of Cu+2 Vs the voltage.

Q: A current of 3.22 A is passed through a Ni(NO,), solution. How long, in hours, would this current…

A: We have to calculate the time required.

Q: An insulator such as wood would have a high electric resistance. OTrue O False

A: The measure of the opposition of current flow through a substance is known as the resistance of that…

Q: electrode will be oxidized?.

A: According to the question an Mg/Mg2+ concentration cell is constructed in which both electrodes are…

Q: A constant electric current deposits 0.3650 g of silver metal in 12960 seconds from a solution of…

A: Given information,    Mass of silver deposit = 0.3650 g    Time = 12960 seconds

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: types of Electrodes

A: (1) Metallic – Metallic means consisting of partly metal or consisting entirely of metal. The…

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu,so, solution onto an electrode with an active…

A:

Q: ELECTROCHEMISTRY: Copper was electroplated from a CuzSOA solution onto an electrode with an active…

A: Copper will deposit according to the equation Cu2++2e-= Cu  We can conude from here that we will…

Q: Give three reasons why the measured voltages in lab may differ from the theoretical voltage.

A: 1).Electrode have layer of metal oxides on the surface.If electrode are not cleaned well then we can…

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu2sO4 solution onto an electrode with an active…

A:

Q: ne electrolysis

A:

Q: Write short note on corrosion control by impressed control method

A: Impressed Current Method Current is applied in opposite direction to that of the corrosion current,…

Q: ELECTROCHEMISTRY: Copper was electroplated from a Cu2SO4 solution onto an electrode with an active…

A: Copper was electroplated from a Cu2SO4 solution onto an electrode with an active surface area of 6.8…

Q: Complete the table below. Given the data obtained from the voltmeter ranking of metals, calculate…

A: Calculate average voltage and standard deviation.

Q: Suppose a current of 590.mA flows through a copper wire for 277. seconds. Calculate how many moles…

A: It is given that:Amount of current flowing through the copper wire = 590 mATime = 277 seconds

Q: Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is…

A:

Q: grams of Ag would be deposited by supplying an electric current of 0.50 A for 30 min

A:

Q: [References) A solution containing Pt** is electrolyzed with a current of 3.20 A. How long will it…

A: Given Current (I)  = 3.20 A Volume = 0.10 L Molarity  = 0.010 M

Q: Chapter 20 Multiple Choice Question 59 Part A What mass of aluminum can be plated onto an object in…

A: According to Faraday's first law of electrolysis the mass of metal deposited is calculated as…

Q: C) Calculate the voltage for this cell. V Porous Barrier AI Sn 0.435 M AI3+ 0.00212 M Sn²*

A: At anode :  Al ---> Al3+ + 3e-   => E° =  -1.66 V At cathode : Sn2+ + 2e- ---->  Sn =>…

Q: current flow to obtain this deposit? mium would be deposited in a sim- 0.100 M Cr³+ if the same…

A: (a) Since the reaction for conversion of Ag+ to Ag is given by  Ag+ + e- ----> Ag  Hence moles of…

Q: What is the voltage this voltmeter is measuring? Be sure your answer has a reasonable number of…

A: Voltmeter is a device used to measure the potential difference,  it measures potential difference in…

Q: Suppose a current of  50.A  flows through a copper wire for  9.0  minutes. Calculate how many…

A:

Q: Suppose a current of 0.800 A flows through a copper wire for 22.0 minutes. Calculate how many moles…

A: Given: a current of 0.800 A flows through a copper wire for 22.0 minutes. To find: no. of moles of…

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: If the electric current is 8 and the voltage is 2, then what is the resistance? 0.25 4 6 D 10

A: Given data,Voltage(V)=2VCurrent(I)=8A

Q: When can a cell generate an electric current?

A:

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

A: The electrical resistance is the term used in the electrochemistry. It is used to measure the flow…

Q: how do you compute the voltage of manganese dioxide?

A: Here can compute or measure the volatge of a cell not only manganese dioxide, there was so many half…

Q: 0.2 What is the voltage this voltmeter is measuring? Be sure your answer has a reasonable number of…

A: Reading on a voltmeter can be found easily by observing the smallest scale on voltmeter.

Q: 9. In a pH meter, if an instrument fails to balance at zero, it is most likely that the electrodes…

A: In a pH meter,if an instrument fails to balance at zero, it is most likely that the electrodes are…

Q: How many grams of silver can be plated onto an object in 11.37 minutes at 5.33 A of current? Ag*(aq)…

A: GivenAg+(aq.)   +  e-  →  Ag(s)Time = t = 11.37 minutes t = 11.37 min * 60 smin = 682.2 sCurrent = I…