Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
- 3rd side (hint)
Arrhenius Theory of Acids & Bases
|
According to this theory, an acid, dissolved in water, dissociates to form hydrogen ions or protons (H+), and a base, dissolved in water, dissociates to form hydroxide ions (OH-).
Some substances have acid or base properties but can not be explained using the Arrhenius Theory. |
|
|
Properties of Acids:
|
-sour taste
-corrosive -will react with many metals to produce hydrogen gas -will neutralize bases (react with bases to produce water and a salt) -will change the color of acid-base indicators (litmus paper turns pink or red in acids; phenolphthalein is colorless in acids) |
|
|
Properties of Bases
|
-bitter taste
-caustic -slippery feeling -will neutralize acids (react with bases to produce water and a salt) -will change the color of acid-base indicators (litmus paper turns blue in bases; phenolphthalein is pink to magenta in acids) |
|
|
Neutralization Reaction:
|
The hydrogen ion of the acid combines with the hydroxide ion of the base to form water; the cation of the base and the anion of the acid form an aqueous solution (usually the salt is soluble in water) of an ionic compound which is called a salt
|
|
|
Bronsted-Lowry Theory of Acids & Bases
|
-broadens the view of acids and bases and can explain why these substances are acids or bases.
An acid as a proton (H+) donor and a base as a proton acceptor. -the acid donates a proton to a base; the acid by donating the proton becomes a base; the base by accepting the proton becomes an acid. |
notes and 241
|
|
The acid and the base it forms when it donates the proton is called a conjugate acid-base pair
|
-a conjugate acid is what is formed when a base accepts a proton
-a conjugate base is what is formed when an acid donates a proton |
|
|
amphiprotic
|
a substance that can behave either as a Bronsted acid or a Bronsted base.
Example water |
|