How many atoms are in 115 grams of Calcium?

Answer 1

Avogadro's Number, 6.022 x 1023 gives the number of atoms in one mole. Calcium has an average atomic weight of 40.08 gmol-1 So one mole weighs 40.08 grams. 115 grams of Calcium will have (6.022 x 1023 / 40.08)*115 = 1.73 x 1024 atoms.

Answer 2

To find the number of atoms in 115 grams of calcium, you first need to determine the number of moles using the molar mass of calcium. Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to atoms. Ultimately, the number of atoms will depend on the specific element's Atomic Mass.