what is mole concept?
Asked by subashtrips | 24th Sep, 2018, 05:20: PM
1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams.
The atomic mass expressed in grams is the gram atomic mass.
The molecular mass expressed in grams is the gram molecular mass.
Therefore, 23 grams of sodium is equal to one mole of sodium atoms.
= 2 × 16 = 32 g
So, 32 grams of oxygen is equal to one mole of oxygen molecules.
1 mole (of anything) = 6.022 × 1023 in number
Answered by Varsha | 24th Sep, 2018, 06:08: PM
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