Wednesday

March 4, 2015

March 4, 2015

Posted by **Keith** on Saturday, May 12, 2007 at 6:16pm.

a) If the current efficiency is 82.0%, how many grams of silver are plated?

b) What is the thickness of the silver plate formed (d= 10.5 g/cm^3)?

I think the efficiency part is tripping me up; I can't even think of how to start the problem. I'm guessing the efficiency has something to do with the amount done over the amount of time taken? But still; I don't know how I can relate the area of the spoon to grams of silver. Any help is appreciated.

Just calculate the current OR coulombs and multiply by 0.82 and proceed. That 82% simply means that 100 A appears to be only 82 A or 500 coulombs (just a made up number) appears to be only 0.82*500).

**Answer this Question**

**Related Questions**

Chem - AgNO3 solutions are often used to plate silver onto other metals. What is...

Chemistry - AgNO3 solutions are often used to plate silver onto other metals. ...

Chemistry - A spoon of sterling silver is 92.5% silver by mass and the rest is ...

math - use : .# x 6 = minutes I did try to do it but came up with numbers like 5...

Physical Science - A 43.0 g silver spoon at 22.3°C is placed in a cup of coffee ...

chemistry - Silver tarnishes (turns to Ag2S) in the presence of oxygen and ...

chemistry - What is the maximum amount of silver in grams that can be plated out...

chem - An award is being plated with pure gold before it its presented to a ...

math - Vanessa typically works 8 hours per day in a normal 5 day work week. Last...

Physics - A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. ...