Final answer:
To determine the number of atoms in 59.0 grams of calcium (Ca), calculate the number of moles of calcium using the molar mass and then use Avogadro's number to find the number of atoms.
Step-by-step explanation:
To determine the number of atoms in 59.0 grams of calcium (Ca), we need to use the concept of moles and Avogadro's number. First, we calculate the number of moles of calcium using the given molar mass:
Number of moles = Mass / Molar mass
Number of moles of Ca = 59.0 g / 40.08 g/mol
= 1.47 moles of Ca
Next, we use Avogadro's number (6.022 x 10^23) to calculate the number of atoms:
Number of atoms = Number of moles x Avogadro's number
Number of atoms of Ca = 1.47 moles x 6.022 x 10^23 atoms/mol
= 8.842 x 10^23 atoms