What is the difference between molar mass and molecular mass?

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What is the difference between molar mass and molecular mass?

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Answer 1 · 2016-05-25T16:50:45

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The ** molecular mass** is a relative mass of a molecule of a substance ( a compound or an element )measured by the ratio of the mass of one molecule of the substance to the mass of $\frac{1}{12} t h$ $1/12th$ part of $_{6}^{12} C$ $""_6^12C$ atom.
It is a unitless quantity,being the ratio of two masses.
The tiny constant mass of $\frac{1}{12} t h$ $1/12th$ part of the mass of $_{6}^{12} C$ $"_6^12C$ atom is also considered as unit of mass and is known as ‘amu’ or ‘u’.
$1 u or amu = 1.6 \times 10^{- 24} g = \frac{1}{N} g$ $1"u or amu"=1.6xx10^(-24)g=1/Ng$
Where N = Avogadro’s Number.

The molecular mass of Carbon dioxide =44
But actual mass of one molecule of carbon dioxide molecule is $44 u$ $44u$

The ** molar mass ** of a substance (a compound or an element) is the mass of 1 mole or Avogadro’s number of the molecules of that substance expressed in $\frac{g}{m o l}$ $g/(mol)$ unit

The molar mass of carbon dioxide is $44 \frac{g}{m o l}$ $44g/(mol)$

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What is the difference between molar mass and molecular mass?

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