Acids and Bases Vocabulary

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1

Acid

any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

2

Acidic Solution

A solution that has a pH below 7.0 (neutral)

3

Amphoteric

having characteristics of both an acid and a base and capable of reacting as either

4

Arrhenius Acid

Produces H+ ions when dissolved in water

5

Arrhenius Base

Produces OH- ions when dissolved in water

6

Base

any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

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Basic Solution

a solution whose pH is greater than 7

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Bronsted-Lowry Acid

a proton donor

9

Bronsted-Lowry Base

a proton acceptor

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Buffer

an ionic compound that resists changes in its pH

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Conjugate Acid-Base Pair

two substances related to each other by the donating and accepting of a single proton

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Dissociation

the separation of ions in an ionic compound as the compound dissolves

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Hydronium Ion

an ion consisting of a proton combined with a molecule of water; H3O+

14

Indicator

a compound that changes color in the presence of an acid or a base

15

Ion Product Constant for Water

the product of the consentrations of hydrogen ions and hydroxide ions in water; it is 1 X 10^-14 at 25 degrees C

16

Neutral Solution

an aqueous solution in which the concentrations of H+ and OH- ions are equal; pH = 7

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Neutralization

a chemical reaction in which an acid and a base interact with the formation of a salt

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pH

a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions.

19

pOH

the negative of the common logarithm of the hydroxide ion concentration of a solution

20

Titration

a measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete