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alexandra2442
alexandra2442
21.05.2021 • 
Chemistry

1. What is the mass in grams of 2.25 mol of the element iron, Fe? 2. What is the mass in grams of 0.375 moles of the element potassium, K?

3. How many moles of calcium, Ca, are in 5.00 g of calcium?

4. How many moles of gold, Au, are in 3.60 x 100 g of gold?

5. How many moles of lead, Pb, are in 1.50 x 1012 atoms of lead?

6. How many moles of tin, Sn, are in 2500 atoms of tin?

7. What is the mass in grams of 7.5 x 1015 atoms of nickel, Ni?

8. How many atoms of sulfur, S, are in 4.00 grams of sulfur?​

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