Final Answer:
The mass of 5.50 moles of calcium is 220.55 grams because calcium's molar mass is 40.08 grams per mole (5.50 moles * 40.08 g/mol = 220.55 g).
Step-by-step explanation:
Calcium has a molar mass of approximately 40.08 grams per mole. To find the mass of 5.50 moles of calcium, we multiply the number of moles by the molar mass. Therefore, 5.50 moles * 40.08 grams/mole = 220.55 grams. This calculation illustrates that 5.50 moles of calcium correspond to a mass of 220.55 grams.
Calcium's molar mass, calculated from its atomic weight found on the periodic table, represents the mass of one mole of calcium atoms. This value allows us to convert between the quantity of moles and mass of calcium.