Question

what is mean by molar mass

Answer 1

The molar mass is the mass of one mole (or 6.023 X 1023) particles of that substance. The molar mass of a substance is numerically equal to the atomic mass or the molecular mass of the substance in ‘u’ and  is always expressed in grams (or sometimes Kg). For example, the molar mass or mass of 6.023 X 1023molecules of glucose is 180g. Similarly, mass of 6.023 X 1023 atoms of sodium or molar mass of sodium is 23g, but its atomic mass is 23u.

Answer 2

''Inchemical ,the molar mass M is a physical property defined as the mass of given substance (chemical elements or chemical compound )divided by the amount of substance . The base S1 unit for molar mass is kg/mol. How ever ,for historical reasons , molar masses are almost always expressed ing /mol.


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