How many moles of copper are in a 4.00 gram copper coin?
how would you figure that out??? i dont get it i know all of the formulas, but i got it wrong and the answer was 0.0629 moles How??? can someone please explain in detail using the formulas pls!! thank you!!! you help is greatly appreciated!!!
STEPS:
1. Use what they give you. So, start out with 4.00g of Cu.
2. Now convert to moles by using the molar mass of Cu. You get this by looking at the periodic table. Based on that, you will find that the mass of Cu is about 63.55 g/mol.
(4.00g Cu) × (1 mol Cu/63.55)
= 0.0629 mol Cu
Hope this helps! 
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