The STATUE OF LIBERTY IS MADE OF 2.00 * 10^5 LB OF COPPER SHEETS BOLTED TO AN IRON FRAMEWORK.?

Question

HOW MANY GRAMS AND MOLES OF COPPER DOES THIS REPRESENT(1LB=454 G)?

Answer 1

To get the number of grams, multiply 2.00 * 10^5 by 454.
200000 * 454 (it's easy on the calculator).

To get the number of moles you have to do 2 things:

1) look up the atomic mass of copper on a periodic table of elements. This will tell you how many grams of copper atoms exist in a mole. (63.54 grams/mole)
2) Divide the number of grams from above by the grams per mole from the periodic table. There is your number of moles.

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