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Chemistry
James Burns
15 September, 03:49
How many atoms of O are in 2.12 miles of NO3
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Gunnar Reid
15 September, 06:06
0
38.3*10²³ atoms of oxygen
Explanation:
Given dа ta:
Moles of NO₃ = 2.12 mol
Atoms of oxygen = ?
Solution:
One mole of any substance contain 6.022 * 10²³ atoms.
The number 6.022 * 10²³ is called 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.
One mole of NO₃ = 6.022 * 10²³ atoms
one molecule of NO₃ contain three atoms of oxygen thus in 2.12 moles number of oxygen atoms are:
2.12*3 * 6.022 * 10²³ atoms = 38.3*10²³ atoms of oxygen
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