Calculate the accepted density.....
Favorites|Homepage
Subscriptions | sitemap
HOME > Chemistry > Calculate the accepted density.....

Calculate the accepted density.....

[From: ] [author: ] [Date: 11-09-01] [Hit: ]
13 g/ml and the density of copper is 8.92 g/ml. Calculate the accepted density of a post-1982 penny. Show work. Thanks!-Assume you have 100.......
Post-1982 pennies are 97.5% zinc and 2.5% copper. The density of zinc is 7.13 g/ml and the density of copper is 8.92 g/ml. Calculate the accepted density of a post-1982 penny. Show work. Thanks!

-
Assume you have 100..0 g of pennies.

You would have
97.5 g of zinc
2.5 g of copper

97.5 g x 1 mL /7.13 g = 13.7 mL
2.5 g x 1 mL/8.92 g = 0.28 mL

Total volume = 13.7 + 0.28 = 13.98 mL

Density = m/V = 100.0 g / 13.98 mL
Density = 7.15 g/mL
1
keywords: Calculate,the,accepted,density,Calculate the accepted density.....
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .