Penny Lab, Chemistry

Assignment Help:
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)

Related Discussions:- Penny Lab

Intro to chemistry, which one contain greater number of moles:96gH2SO4 64gO...

which one contain greater number of moles:96gH2SO4 64gO2 48gch4 10gH2

Indicate the nature of bonding, Indicate the nature of bonding in CCl 4   a...

Indicate the nature of bonding in CCl 4   and  CaH 2 : (1) Covalent in Ccl 4    and electrovalent in  Cah 2 (2) Electrovalent in both CCl  and CaH 2 (3) Covalent in bot

Stochiometry, a sample of CaCo3 and MgCo3 weighing 192g is ignited to const...

a sample of CaCo3 and MgCo3 weighing 192g is ignited to constanr weight of 104 gm . what is the composition of mixture ?

Explain heat of formation, Explain heat of formation Although both mole...

Explain heat of formation Although both molecules have bridgehead double bonds, the double bond in compound B is more twisted, and a model of this molecule is more complex to b

Retinaladehyde, the uses,preparation,and the reaction

the uses,preparation,and the reaction

Explain heavy water, Explain heavy water? Ans) Isotopes of H 2 O, D 2 ...

Explain heavy water? Ans) Isotopes of H 2 O, D 2 O

Photon absorption for ir spectroscopy, Photon absorption for IR spectroscop...

Photon absorption for IR spectroscopy                                                                  Photon absorption for IR spectroscopy

Electromeric effect - organic chemistry, Electromeric effect (1) The oc...

Electromeric effect (1) The occurrence of movement of electrons from one atom to other in multi bonded atoms at the demand of attacking reagent is known as electromeric effect.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd