How many atom are in 143g of calcium?

Answer 1

First, look up the Atomic Mass of calcium: 40.08 grams per mole

143 grams, divided by 40.08 grams per mole, results in 3.57 moles.

Since you specifically asked for the number of ATOMS, multiply by Avogadro's number, 6.02 x 10-to-the-23rd-power atoms per mole.

Final answer: 2.15 x 10-to-the-24th power atoms.

Answer 2

The molar mass of calcium is approximately 40 g/mol. To find the number of atoms in 143 g of calcium, first determine the number of moles (143 g / 40 g/mol) and then use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms.