The relative molecular mass of the compound is 45.8
Formula for calculating relative molecular mass
The relative molecular mass of anisotope can be obtained by using the formula below:
Relative molecular mass = [(Mass of A × Abundance of A)/100] + [(Mass of B × Abundance of B)/100]
Where
- A and B are the isotope of the element.
How to determine the relative molecular mass
- Mass of isotope A = 45
- Abundance of A = 60%
- Mass of isotope B = 47
- Abundance of B = 40%
- Relative molecular mass =?
The relative molecular mass can be obtained as illustrated below:
Relative molecular mass = [(Mass of A × Abundance of A)/100] + [(Mass of B × Abundance of B)/100]
Relative molecular mass = [(45 × 60)/100] + [(47× 40)/100]
Relative molecular mass = 27 + 18.8
Relative molecular mass = 45.8
Thus, the relative molecular mass is 45.8
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