Quantitative Chemistry Flashcards

Flashcards covering the vocabulary and key concepts in quantitative chemistry.

Word Equations

Show the reactants and products of a chemical reaction using their full chemical names.

Reactants

The substances on the left-hand side of the arrow in a chemical equation; the chemical ingredients of the reaction.

Products

The substances on the right-hand side of the arrow in a chemical equation; the new substances formed from the reactants.

Symbol Equation

Uses the formulae of the reactants and products to show what happens in a chemical reaction.

(s)

Solid

(l)

Liquid

(g)

Gas

(aq)

Aqueous

Conservation of Mass

No atoms are lost or made during a chemical reaction so the mass of the products equals the mass of the reactants

Precipitation reaction

Two solutions react to form an insoluble solid called a precipitate

Chemical / symbol equations

Used to calculate the moles and mass of reactants and products in a chemical reation

Yield

The amount of product you get from a reaction

Relative formula mass

The total mass of the molecule, used when referring to the total mass of an ionic compound

Percentage Composition

A way to express the mass of each element as a percentage of the total mass of the compound

Empirical Formula

A whole number ratio of the atoms of each element present in one molecule or formula unit of the compound

Mole

The relative atomic mass of that element in grams

Concentration

The amount of solute there is in a specific volume of the solvent

Titrations

Analyzing the concentration of solutions or for preparing soluble salts

Indicators

Shows the endpoint in a titration

Molar gas volume at rtp

The volume occupied by one mole of any gas at room temperature and pressure, equal to 24 dm3 or 24,000 cm3