Penny Lab, Chemistry

Pennies made after 1982 are made of 97.5% zinc and 2.5% copper instead of 95% copper and 5% zinc. Pree 1982 pennies weighed 3.10g. The penny contained 2.95g of zinc and 0.15g of copper. In September 2011 the cost of zinc was $0.88/lb and the cost of copper is $3.41/lb. How much would it cost to make an "old" penny? (1lb=454g)
Posted Date: 2/19/2013 7:26:39 PM | Location : United States

Related Discussions:- Penny Lab, Assignment Help, Ask Question on Penny Lab, Get Answer, Expert's Help, Penny Lab Discussions

Write discussion on Penny Lab
Your posts are moderated
Related Questions
what are the oxides and halides of d-block elements? mention them groupwise and comment on the stability of their oxidation state.

The frequency of an electromagnetic radiation is  2x 10 6 Hz. . What is its wavelength in metres : (Velocity of light = 3x10 8 ms -1 ) (1)6.0x 10 14

How To Develop A New Product  The process of developing a new product comprises three phases, namely formulation or recipe development, standardization of processing methods,

Q. Concentration factors affecting taste quality? There is a specific range at which the tasteful substances should be used. The concentration required for identification is

Number of unpaired electrons in inert gas is: (1) Zero         (2) 8        (3) 4                (4) 18 Ans: Zero

How acidic character varies in s block elements