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What is the difference between molar …

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What is the difference between molar mass and molecular mass ? Explain with example.

Posted by Sonami Barik 3 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Yogita Ingle 3 years, 8 months ago

MOLAR MASS	MOLECULAR MASS
Refers to mass of a mole of a substance	Refers to the mass of molecules
Also known as molecular weight	It determines the mass of single molecule
SI unit is g/mol to use in higher calculations	Measured in amu
It is defined as the mass of Avogadro number of atoms/molecules or compounds	No particular melting point
Measurement given to compounds, atoms or molecules	Determined only in molecules
Less accurate than molecular mass	Accurate to use in higher calculations
Example: Mass of 1 mole of oxygen is 15.9994 grams. Therefore the molar mass = 15.9994 g/mol	Example: Molecular mass of Ca(OH)₂ = 74 atomic mass units

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