Chapter 3 - Avogado's Number and Molar Mass

What is a mole (mol)

The amount of substance that contains as many elementary entities (atoms, molecules, or other particles) as there are atoms in exactly 12 g (or 0.012 kg) of the carbon-12 Isotope.

What is Avogrado’s Number?

6.0221413 × 10 ***23

What is Molar Mass?

The mass of one mole of atoms, molecules, or other particles

How do you calculate the mass percentage of a compound?

Mass Percent = (Mass of Component / Total Mass of Compound) x 100%

How to calculate percent composition?

Percent Composition = (Total Mass of Element / Molar Mass of Compound) x 100%

What is empirical Formula?

represents the simplest, whole-number ratio of atoms in a chemical compound, indicating their relative proportions rather than the exact number of atoms in a molecule.

What is a Molecular Formula?

a notation in chemistry that uses chemical symbols and subscripts to show the exact types and numbers of atoms of each element present in a single molecule of a compound