Calculate the number of atom in 3mode of mg

18.066  × 10²³ atoms

Explanation:

Given data:

Number of atoms of Mg = ?

Number of moles of Mg = 3 mol

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.

1 mole = 6.022 × 10²³ atoms

3 mol   ×  6.022 × 10²³ atoms  / 1mol

18.066  × 10²³ atoms

the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.