Concept of the Mole
The concept of the mole can be confusing to many as the mole is such an abstract terminology used in chemistry.
To break it down into simpler terms, a mole can be defined as a measuring unit such as a dozen, but instead of having 12 items in 1 dozen, a mole has 6.022 x 1023 things. The mole is indeed a gigantic number! The mole is a SI base unit and formally it is defined as the number of atoms found in exactly 12 g of pure carbon-12.
If you write out the amount found in 1 mole, you will get
1 mole = 602 213 670 000 000 000 000 000 of particles
This enormous number 6.022 x 1023 is called Avogadro’s number.
- Calculating average atomic mass and what that means.
- Importance and applications of isotopes
- Know how to name covalent/ionic compounds with polyatomic ions and multivalent elements.
- Know how to balance chemical reactions
- Be able to describe the concept of the mole and its importance to measurement in chemistry.
- Mole conversions (Molar volume, mass, and particles)
- Know how to identify the type of reaction and be able to predict products and reactants.
- Know how to use mol-mol ratio to calculate moles of another or mass of another
- Calculate your limiting reagent and excess
- Know how to determine your empirical formulas from percent composition