Acids, Bases, and pH Vocabulary

Titration

• A method to measure the volume of a liquid

• A laboratory method used to determine the concentration of an analyte by reacting it with a standard solution.

• A technique for separating mixtures

• A process of heating substances to change their state.

Endpoint

• The point in a titration at which the reaction is complete, often indicated by a color change.

• The initial stage of a titration before any reactants are added.

• The maximum volume of titrant that can be added without changing the reaction.

• The point at which the pH of the solution is neutral.

pH

• A measure of the acidity or basicity of a solution.

• A measure of temperature in a solution.

• A measure of the density of a solution.

• A measure of the color intensity of a solution.

Bronsted-Lowry Acid

• A substance that donates a proton (H+) to another substance.

• A substance that accepts a proton (H+) from another substance.

• A substance that increases the concentration of hydroxide ions in solution.

• A substance that does not participate in acid-base reactions.

Bronsted-Lowry Base

• A substance that accepts a proton (H+) from another substance.

• A substance that donates a proton (H+) to another substance.

• A substance that increases the concentration of hydroxide ions in solution.

• A substance that has a pH less than 7.

pH Scale

• A scale ranging from 0 to 14 that measures the acidity or basicity of a solution.

• A scale that measures temperature from freezing to boiling.

• A scale that indicates the concentration of dissolved oxygen in water.

• A scale used to measure the density of liquids.

pH Indicator

• A chemical that changes color at a specific pH level.

• A substance that neutralizes acids and bases.

• A solution that maintains a constant pH.

• A compound that increases the pH of a solution.

Acid

• A substance that increases the concentration of hydrogen ions (H+) in a solution.

• A substance that decreases the concentration of hydrogen ions (H+) in a solution.

• A neutral substance that does not affect hydrogen ion concentration.

• A substance that increases the concentration of hydroxide ions (OH-) in a solution.

Proton (or hydrogen ion) donor

• A substance that donates a hydrogen ion (H+) in a chemical reaction.

• A substance that accepts a hydrogen ion (H+) in a chemical reaction.

• A substance that neutralizes acids by forming water.

• A substance that increases the concentration of hydroxide ions (OH-) in a solution.

Arrhenius Acid

• A substance that increases the concentration of H+ ions in aqueous solution.

• A substance that decreases the concentration of H+ ions in aqueous solution.

• A substance that increases the concentration of OH- ions in aqueous solution.

• A substance that has a pH greater than 7.