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Answer this on a clear sheet of paper. Show your solution.
1. How many grams of H2O2 are in 4.56x1024 atoms of H2O2?
2. How many atoms are found in 116.50g Fe?
3. How many moles are there in 84.217 g of Na?
4. How many grams can be found in 7.48 moles of He
5. How many atoms are there in 12 moles of Au?