Answers

2015-10-21T07:25:22+05:30
The mole of a substance is quantity if matter having mass equals to its atomic or molecular mass in grams.Also,one mole of a substance contains 6.022*10²³.So,it means that one mole of a substance contains 6.022 *10²³ atoms.
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2015-10-21T08:32:37+05:30
A mole is that amount of substance which contains the same no. Ofunits as the no. of atoms in12g of carbon12.
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