LESSON 2: Stoichiometry

Base

supports the bunsen burner and keeps it stable and upright on the laboratory table

Gas Inlet

the part through which gas usually enters the burner from the gas source

Collar

a moveable metal ring around the air holes that can be turned to open or close them

Air Holes

located at the bottom of the barrel ; they allow air to enter and mix with the gas

Combustion

the process of burning a substance (usually fuel) in the presence of oxygen

Complete Combustion

it produces carbon dioxide and water

Complete Combustion

Incomplete Combustion

it produces carbon monoxide (toxic), soot, and water

Incomplete Combustion

Electrolysis

chemical decomposition produced by passing an electric current through a liquid or solution containing ions ; in the case of water, it splits the H20 molecules into hydrogen gas (H2) and oxygen gas (O2)

Stoichiometry

a branch of chemistry that deals with the quantitative relationships between reactants and products

Empirical Formula

the simplest whole-number ratio of atoms in the compound

Molecular Formula

is a chemical formula that shows the number of atoms of each element in a molecule

Molar Mass

the mass (g) of one mole of a substance ; expressed in grams/mole or g/mol

6.02x10^23

1 mole = __________ particles of a substance

Theoretical Yield

is the maximum amount of product that can be produced from a given amount of reactant in ideal conditions

Actual Yield

is the amount of product actually produced when chemical reactions is carried out in an experiment