Chapter 2.8, Problem 2.1ACP

Interpretation Introduction

Interpretation: Considering the given percent compositions of compounds in mineral, the empirical formula of mineral should be determined.

Concept introduction:

• Empirical formula of a compound represents the smallest whole number relative ratio of elements in that compound.
• Moles: One mole is equivalent to the mass of the substance consists same number of units equal to the atoms present in $\text{12}\text{g}$ of ${}^{\text{12}}\text{C}$.
• From given mass of substance moles could be calculated by using the following formula,

  $\text{Moles}\text{of}\text{substance }\text{= }\frac{\text{Given}\text{mass}\text{of}\text{substance}}{\text{Molecular}\text{mass}}$

• Mass percent of elements of a compound is the ratio of mass of element to the mass of whole compound and multiplied with hundred.