Question

what is the difference between molar mass and molecular mass?? class 11 cbse I want perfect answerS frnds..​

Answer 1

Answer:

Molecular mass of a compound is defined as the mass of one molecule. Molecular mass differs because of the isotopes. The unit in which molecular mass is measured is amu. Amu stands for atomic mass units.

It is defined as the mass of substance for a given amount. The amount of molecules or atoms or compounds present in one mole of substance is given by this. Molar mass SI unit is g/mol

Explanation:

Answer 2

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Difference between Molar mass and Molecular mass

MOLAR MASS :-

• Refers to mass of a mole of a substance
• Also known as molecular weight
• SI unit is g/mol to use in higher calculations
• It is defined as the mass of Avogadro number of atoms/molecules or compounds
• Measurement given to compounds, atoms or molecules
• Less accurate than molecular mass
• Example: Mass of 1 mole of oxygen is 15.9994 grams. Therefore, the molar mass = 15.9994 g/mol

MOLECULAR MASS:-

• Refers to the mass of molecules
• It determines the mass of a single molecule
• Measured in amu
• No particular melting point
• Determined only in molecules
• Accurate to use in higher calculations
• Example:

Molecular mass of Ca(OH)2 = 74 atomic mass units