Question

How many atoms are in 4.6 mol K?

Answer 1

Answer:

27.7  × 10²³ atoms

Explanation:

Given data:

Number of moles of Potassium = 4.6 mol

Number of atoms = ?

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 4.6 moles of K:

One mole = 6.022 × 10²³ atoms

4.6 mol × 6.022 × 10²³ atoms= 27.7  × 10²³ atoms