Molecular Mass and Relative Molecular Mass
Molecular Mass and Relative Molecular Mass
Molecular Mass:
The molecular mass of a substance is the sum of the atomic masses of all the atoms in a molecule of the substance. It is therefore, the relative mass of a molecule expressed in atomic mass units (u).
Illustration : The relative molecular mass of water is 18 u, which can be calculated as
Atomic mass of Hydrogen= 1u
Atomic mass of oxygen =16u
Determine the molecular mass of ammonia (NH3) ? | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following is the molecular mass of Methane ( CH4 )? | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following is the relative molecular mass of H2 ? | |||
| Right Option : B | |||
| View Explanation | |||
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