Letter 10764

Density of copper & zinc  

United States Mint image

What is the density of copper? Also what is the density of zinc?

Flo M [last names of students are deleted]
- Poughkeepsie, New York


+

Copper is 8.92 g/cm3, Zinc is 7.1 g/cm3. When you go to search for density of materials, do not forget to also search "specific gravity".

Ira Donovan, M.S.F.
Ed. note: Master Surface Finisher
is NASF's highest certification level. 
Burns & McDonnell
  
Kansas City, Missouri


+

8.89 and 7.14 respectively.

Bill Reynolds
   consultant metallurgist
Ballarat, Victoria, Australia

More fun with science . . .

 


Learn more:
If you don't quite understand what density means, see the "Coach's notes".
 
Until 1982 pennies were made of copper;
Since 1983 they have been made of zinc with a thin copper plating
 
 
The chemical symbol for copper is Cu, and for zinc is Zn.
 
A cooper makes wooden casks held together with bands of steel, not copper.
 

++++

Dude! That was so cool! Cause I had homework to find the density of those two elements and they are right there! Awesome! Who's getting an A? Me! Hurah! Keep putting stuff like that up and I will pass Chem. for sure. Awesome!

Bob B.
- Middlesex, New Jersey


September 18, 2008

You guys rock. Thanks for the easy source for my paper. :D

Rei C
- norfolk, VA, USA


January 22, 2009


Hai puzzled, i was given to carry out an experiment to determine the density of coated cylindrical copper wire with the following data diameter 0.22 mm, length 197 cm and mass 0.6g. The problem is that the answer should be almost the standard density of copper.

Teddy Muleki
STUDENT - LUSAKA,ZAMBIA

The fun way to learn is "hands on", so
Get yourself a precision scale . . .


January 28, 2009

Hi, Teddy. That sounds like a calculation, a homework question, not an experiment. What part of the experiment did you actually do -- measure and weigh the copper? The answer is not off by a lot (less than 10 percent). Show your work and we can point out your error.

Regards,


Ted Mooney, P.E. 
finishing.com
Brick, New Jersey


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