Question

If an element is a metal then its molar mass is its atomic mass expressed in grams ( gram
atomic mass). If an element exists as molecule, its molar mass is its molecular mass expressed in
grams (gram molecular mass).​

Answer 1

Answer:

Learning Objectives

By the end of this section, you will be able to:

Calculate formula masses for covalent and ionic compounds

Define the amount unit mole and the related quantity Avogadro’s number

Explain the relation between mass, moles, and numbers of atoms or molecules, and perform calculations deriving these quantities from one another

We can argue that modern chemical science began when scientists started exploring the quantitative as well as the qualitative aspects of chemistry. For example, Dalton’s atomic theory was an attempt to explain the results of measurements that allowed him to calculate the relative masses of elements combined in various compounds. Understanding the relationship between the masses of atoms and the chemical formulas of compounds allows us to quantitatively describe the composition of substances.