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madreJ [45]
3 years ago
13

How many moles of magnesium are 5.231 X 1023 atoms of magnesium?

Chemistry
1 answer:
Aleks04 [339]3 years ago
6 0

Answer:

0.87 moles

Explanation:

Given data:

Number of moles of magnesium = ?

Number of atoms of magnesium = 5.23 × 10²³ 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,

one mole = 6.022 × 10²³ atoms

5.23 × 10²³ atoms  × 1 mol / 6.022 × 10²³ atoms

0.87 moles

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