Mole Concept PBL Study Guide

Natalie G, Nathan N, Annmarie V, Zach W

Mole Concept Overview

The mole is a huge part of stoichiometry. In chemistry the mole, or Avogadro's number, is a fundamental unit in the SI system. That number is 6.02 x 10^23. A mole is the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12. The special property of a mole is that one mole of an element contains the same number of atoms as a mole of any other element. Moles give us a consistent method to convert between atoms/molecules and grams. One mole of anything equals 6.02 x 10^23.

Big image
Big image

Molar Mass

- Mass of one mole of the given substance

IMG 3862

Percent Yield

- Calculated by dividing the experimental yield by the theoretical yield

IMG 3883

Percent Composition

- Percentage by mass of each element in a compound

IMG 3863

Empirical Formula

- A formula giving the proportions of the elements present in the compounds but not the actual numbers or arrangement of the atoms

- Reduced form of the molecular formula

IMG 3853

Molecular Formula

- A chemical formula based on analysis and molecular weight

IMG 3856

Reaction Stoichiometry

- Description of the quantitative relationships among substances as they participate in chemical reactions

IMG 3879

Limiting Reactant

- The reactant in a chemical reaction that determines the amount of product produced

IMG 3886

MLA Citations

"ChemTeam: Stoichiometry: Limiting Reagent." ChemTeam: Go to ChemTeam's Main Menu. N.p., n.d. Web. 21 Feb. 2013.

"khan Academy." Stoichiometry. N.p., n.d. Web. 18 Feb. 2012. <>.