Chem Vocab

Conjugate Base

Base that forms when an acid loses a proton

Amphoteric

Describes a substance, such as water, that has the properties of an acid and the properties of a base

Self-Ionization

The product of the concentrations of the two ions that are in equilbrium with water

Neutral

Describes an aqueous solutions that contains equal concentrations of hydronium ions and hydroxide ions.

Titrant

Is a solution of known concentration that is used to titrate a solution of unknown concentration

Standard Solution

Is a solution of known concentration

Transition range

The pH range through which an indicator changes color

End Point

The point in a titration which a marked color change takes place

Acid ionization

The equilibrium constant for a reaction in which an acid donates a proton to water

Buffer Solution

A solution made from a weak acid and its conjugate bases that neutralizes small amounts of acids or bases added to it.

Strong Acid

An acid that ionizes completely

Weak Acid

An acid that releases few hydrogen ions in aqueous solution

Strong Base

A base that ionizes completely in a solvent

pH

A value to express acidity and alkalinity of a solution

Neutralization

A reaction of the ions that characterize acids and the ions that characterize bases to form water molecules and a salt.

Equivalence

The point at which two solutions used in a titration are present in chemically equivalent amounts.

Titration

A method to determine the concentration of a substance in solution by adding a solution of known volume and concentration until the reaction is completed.

Weak Base

A base that releases few hydroxide ions in aqueous solutionBr

Bronsted-Lowry Acid

A substance that donates a proton to another substance

Bronsted-Lowry Base

A substance that accepts a proton

Conjugate Acid

An acid that forms when a base gains a proton