CBSE Class 9 Answered
What is a mole and how big is it?
Asked by Navavidha Kale | 28 Dec, 2013, 07:39: PM
Expert Answer
Mole is the amount of substance that contains the same number of particles (atoms/ ions/ molecules/ formula units etc.) as there are atoms in exactly 12 g of carbon-12.
1 mole of any substance = 6.022 x 1023 units
Answered by | 30 Dec, 2013, 11:23: AM
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