Question

Q.30: (a) Define mole in terms of (1) mass (ii) number. How are the number of moles (n) of a
substance calculated from its (1) mass (m) (ii) no. Of molecules (N)
(b) Define molar mass. What are its units?​

Answer 1

Explanation:

HEY MATE

The mass of substance containing the same number of fundamental units as there are atoms in exactly 12.000 g of 12C.Fundamental units may be atoms, molecules, or formula units, depending on the substance concerned.

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles. ... In the International System of Units (SI), the base unit of molar mass is kg/mol.

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