4. If I weighed out 0.721 grams of Al (Aluminum), how many moles of Al do I have?
5. How many grams of Cd (Cadmium) do I need to mass out to obtain 6.07 moles of Cd?
6. If I have weighed out 3.21 kilograms of Ca (Calcium), how many moles of Ca do I have?
Answer: