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Calculate the Molecular Masses of the Following Compounds : - Science

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Short Note

Calculate the molecular masses of the following compounds :

Ethanol, C2H5OH

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Solution

Given:

Atomic mass of C = 12 u

Atomic mass of O = 16 u

Atomic mass of H = 1 u

Therefore, molecular mass of C2H5OH can be calculated as follows:

(2 × 12) + (6 × 1) + (1 ×16) = 46

Hence, molecular mass of ethanol is 46 u.

Concept: Molecular Mass
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APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Short Answers | Q 45.2 | Page 130

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