HOW MANY GRAMS AND MOLES OF COPPER DOES THIS REPRESENT(1LB454 G)?
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. .
