How to Calculate the Surface Area for Nickel Plating with Given Parameters?

  • Thread starter Thread starter Totter
  • Start date Start date
  • Tags Tags
    Electrochemical
AI Thread Summary
To calculate the surface area for nickel plating, start with the formula relating mass, area, and thickness. The electrochemical equivalent of nickel is 0.305 mg/C, which indicates the mass of nickel deposited per unit charge. Given a current of 12.4 Amps and a plating time of three and a half hours, convert these values into appropriate units for the calculation. The density of nickel at 8778 kg/m^3 will also be necessary to determine the volume of nickel required. Following these steps will allow for the accurate calculation of the surface area that can be plated.
Totter
Messages
8
Reaction score
0
1.A plate is to be nickel-plated to a thickness of 0.15mm in three and a half hours. The electrochemical equivalent of nickel is 0.305mg/C and the density of nickel is 8778kg/m^3 .Calculate the surface area of the plate that can be plated to the specified thickness with current of 12.4Amps.

Ok soo " m=zIt " would only get me soo far and I really don't have a clue even in which UNITS this must first go to.My Book is extremely vague on the matter and don't know what you would call this on google :(
 
Physics news on Phys.org


Totter said:
1.A plate is to be nickel-plated to a thickness of 0.15mm in three and a half hours. The electrochemical equivalent of nickel is 0.305mg/C and the density of nickel is 8778kg/m^3 .Calculate the surface area of the plate that can be plated to the specified thickness with current of 12.4Amps.

Ok soo " m=zIt " would only get me soo far and I really don't have a clue even in which UNITS this must first go to.My Book is extremely vague on the matter and don't know what you would call this on google :(

Hi Totter, Welcome to Physics Forums.

Go step by step and see if you can work out what's required and whether or not the information is provided.

First write a formula that relates the required mass of nickel given plate area and thickness of the coating.

Next look at the given " electrochemical equivalent of nickel is 0.305mg/C". What do you suppose the units are telling you?
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top