Acids And Bases

Question 1

Arrhenius acid

Answer 1

A substance that produces hydrogen or hydronium ions when dissolved in water

Question 2

Arrhenius base

Answer 2

A substance that produces hydroxide ions when dissolved in water

Question 3

Lowry Bronsted acid

Answer 3

A proton donor

Question 4

Lowry Bronsted base

Answer 4

A proton acceptor

Question 5

Diprotic acid

Answer 5

Releases to hydronium ion is per molecule of acid

Question 6

Strong acid

Answer 6

A substance that ionise completely in water To form a high concentration of H30 plus

Question 7

Strong base

Answer 7

Disassociates completely in water to form a high concentration of 0H minus ions

Question 8

Concentrated acid and bases

Answer 8

An acid that contains a large amount of acid/base in proportion to the volume of water

Question 9

Dilute acids and bases

Answer 9

An acid or base that contains a small amount of acid or base in proportion to the volume of water

Question 10

Bromothymol blue

Answer 10

Strong acid (yellow) and strong base (blue)
Colour at endpoint: green

Question 11

Phenolphthalein

Answer 11

Weak acid (colourless) strong base (pink)
Colour at any point: faint pink

Question 12

Methyl red

Answer 12

Strong acid (Red) and weak base (yellow)
Colour at any point: orange