Calculate the atomic mass (average) of ...

NCERT Class XI Chemistry Some Basic Concepts of Chemistry Solutions

Question : 9 of 36

Marks: +1, -0

Calculate the atomic mass (average) of chlorine using the following data :

	% Natural abundance	Molar mass
$\,{}^{35}\mathrm{Cl}$	75.77	34.9689
${}^{37}\mathrm{Cl}$	24.23	36.9659

Solution:

The atomic mass (average) of chlorine

\frac{75.77\times 34.9689 + 24.23\times 36.9659}{75.77+24.23}

\frac{2649.59+895.68}{100}

\frac{3545.27}{100}

= 35.45 u

Go to Question:

Prev Question

Next Question