Chapter 10.4, Problem 70SSC

Interpretation Introduction

Interpretation:

The relation of percent composition data of a compound and the masses of the elements of compound needs to be explained.

Concept introduction:

In the given compound, the mass percent of any component can be calculated as follows:

$\%m_A=\frac{m_A}{m_{compound}}$

Here, $m_A$ is mass of the component and $m_{compound}$ is mass of compound.

Explanation of Solution

To find percent composition, the atomic mass of all the elements should be known.

$\%m_A=\frac{m_A}{m_{compound}}$

Using the atomic masses of elements in the compound, the molar mass of the compound can be determined. The percent composition can be determined by taking ratio of molar mass of an element to the total mass of the compound multiplied by 100%.

Conclusion

Thus, one can see that atomic mass of the element is directly proportional to percent composition.