What is the number of atoms in 2.0 mole of zinc

12.044  × 10²³  atoms

Explanation:

Given data:

Number of moles of Zn = 2 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 Zn:

1 mol of Zn = 6.022 × 10²³  atoms

2 mol × 6.022 × 10²³  atoms / 1mol

12.044  × 10²³  atoms

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explanation: