Acids and bases

Question 1

Bronsted -Lowry ACIDS AND BASES

Answer 1

ACIDS = Donate protons 
BASES = Accept protons

Question 2

Lews ACIDS AND BASES

Answer 2

ACIDS = accept electrons 
BASES = Donate electrons

Question 3

Strong and weak acids and bases

Answer 3

Strong acids and bases dissociate completely in an aqueous solution, whereas weak acids and bases only partially dissociate

Question 4

Buffer Solution

Answer 4

One that resists changes in pH when small amounts of acid or alkali are added

Question 5

Conjugate ACID - BASE pair

Answer 5

Conjugate acid-base pair these differ by one proton (H+); when an acid donates a proton it forms the conjugate (CH3COO- is the conjugate base of CH3COOH); when a base gains a proton it forms the conjugate acid (H30+ is the conjugate acid of H20)

Question 6

Equivalence point

Answer 6

The point at which numbers of moles of acids and alkali have been added in a titration

Question 7

Ionic product Constant

Answer 7

a modified equilibrium constant for the dissociation of water
Kw = {H+(aq)}{OH-(aq)}
Kw has a value of 1.0 x 10-14 at 25 degrees

Question 8

Monoprotic acid

Answer 8

HCL is an example as it dissociates to form one proton per molecule

Question 9

PH

Answer 9

The measure of the concentration of H+ ions in an aqueous solution; decribed as the negative logarithm to base.
10 of the hydrogen ion concentration in aquoues solution
Ph = -log10 [H+(aq)]