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

Statements is not true for ionic compoundss, Which of the following stateme...

Which of the following statements is not true for ionic compoundss: (1) High melting point (2) Least lattice energy (3)Least solubility in organic compounds (4) Solubl

Write a shortnote on electrorefining of copper? , Electro refining of Coppe...

Electro refining of Copper Electrolyte - Aqueous copper sulphate solution (acidified) Cathode - Pure copper metal (thin rod) Anode - Impure copper metal (thick block

Uses of starch - biomolecules, Uses of Starch - Biomolecules (a) Starch...

Uses of Starch - Biomolecules (a) Starch are used as the most useful constituent of food as rice, bread, potato and corn-flour, etc. (b) Starch are used in the creation of d

Distinguish between dry corrosion and wet corrosion, Distinguish between dr...

Distinguish between dry corrosion and wet corrosion. Write brief notes on dissimilar types of liquid crystals.

Cyclohexane molecule, For the following cyclohexane molecule, illustrate cl...

For the following cyclohexane molecule, illustrate clear representations of both possible chair forms of the molecule.  Be sure to properly draw all the axial and equatorial groups

Uuu, what is p block element

what is p block element

Periodic table, feature of s, p, d,f block in periodic table

feature of s, p, d,f block in periodic table

Chemical analysis - qualitative analysis, Qualitative analysis A salt c...

Qualitative analysis A salt contains two parts defined as radicals. The positively charged part of a salt (cation) that has been derived from a base is known as basic radical a

Molarity and normality, When 100 ml of M/10 H2SO4 is mixed with 500 ml of M...

When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is

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