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kooygi5278
13.12.2020 •
Chemistry
calculate the number of atoms in 2.5 mol manganese. show the steps and please don’t answer if you don’t know :)
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Ответ:
15.1 × 10²³ atoms
Explanation:
Given data:
Number of moles of manganese = 2.5 mol
Number of atoms = ?
Solution:
Avogadro number:
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
2.5 mol × 6.022 × 10²³ atoms / 1 mol
15.1 × 10²³ atoms
Ответ: