How many mol are in 8.23 x 10^24 formula units of calcium carbonate

13.7 moles

Explanation:

Given dа ta:

Number of moles calcium carbonate = ?

Formula units calcium carbonate = 8.23 * 10²⁴

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms, ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 * 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 * 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 * 10²³ atoms of hydrogen

For 8.23 * 10²⁴ formula units:

one mole = 6.022 * 10²³ formula units

8.23 * 10²⁴ formula units * 1 mole / 6.022 * 10²³ formula units

13.7 moles