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Chemistry - One Step Mole Problem for Elements - Numbers
Answer the following using the appropriate equation or using dimensional analysis. Show all work, cancel units, etc.
1. How many moles of P (phosphorus) do I have if I have 4.32E24 atoms P?
2. How many atoms K in 0.125 moles K (potassium)?
3. If I counted out 3.417E22 atom Fe (iron), how many moles Fe do I have?
4. If I have 6.12E24 atoms B (boron), how many moles do I have?
5. How many atoms of Pb (lead) do I need to have 2.543 moles of Pb?
6. If I have weighed out 0.0453 kilograms of Na (sodium), how many moles of Na do I have?
Answer: 1)211g Zn 2)8.0g S 3)0.579mole Fe
4) 0.0382 mole B 5) 526.4g Pb 6) 1.97 mole Na