Chapter 3.1, Problem 3.3AFP

Interpretation Introduction

Interpretation:

The mass of manganese atoms in the bones is to be calculated. The road map for the calculation of the mass of manganese atoms is to be included.

Concept introduction:

The SI unit for amount of substance is $\text{mol}$. One mole is defined as the amount of substance that contains the same number of entities such as molecules, ions, atoms as the number of atoms in $12\text{ g}$ of $\text{C-12}$. This number is called Avogadro’s number. The value of Avogadro’s number is $\text{6}\text{.022}\times {\text{10}}^{23}\left(\text{entitites/mol}\right)$.

The expression to calculate the mass of a substance when the number of atoms is given is as follows:

$\text{Mass }\left(\text{g}\right)=\left(\text{No}\text{. of atoms}\right)\left(\frac{1\text{ mol}}{6.022\times {10}^{23}\text{ atoms}}\right)\left(\frac{\text{no}\text{. of grams}}{1\text{ mol}}\right)$