How many atoms are in 125 grams of Calcium?

Answer 1

Well, Ca has an Atomic Mass of 40, so one mole of Ca (6.022x1023 atoms) equals 40g.
To get 5kg of Ca, you would times the 40g (one mole) by 125.
5kg of Ca has 125x(6.022x1023), or
602200000000000000000000 atoms.

Answer 2

To find the number of atoms in 125 grams of calcium, you first need to convert the mass to moles using the molar mass of calcium. Then, you can use Avogadro's number (6.022 x 10^23) to find the number of atoms in one mole of calcium. Finally, multiply the number of moles by Avogadro's number to find the total number of atoms in 125 grams of calcium.

Answer 3

There are 6.02 x 1023 particles in one mole of any substance. In 5.90 moles of calcium, there would be 5.90 x 6.02 x 1023 = 3.55 x 1024 Ca atoms.

Answer 4

155 grams of calcium have 22,539077.10e23 atoms.

Answer 5

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