Acids & Bases

Question 1

what concentration of hydronium to hydroxide ions determines if a solution is:

• acidic
• neutral
• basic

Answer 1

acidic = H3O+ > OH-

neutral = H3O+ = OH-

basic = H3O+ < OH-

Question 2

when do we use an ice table

Answer 2

when a substance partially ionizes e.g. a weak acid

Question 3

what is autoionization of water

Answer 3

reaction of water molecules to form h3o + and OH -

Question 4

how do we tell if it’s an acid or base

Answer 4

acids start with H

bases end with OH

Question 5

what is the formula for % ionisation

Answer 5

Ka = ([H3O].[A])/[HA]

Question 6

what is monoprotic

Answer 6

an acid that will only donate 1 proton e.g. HCl, HNO3, CH3COOH, C6H5COOH, HI, HF

Question 7

what happens when the reaction quotient Q < K (equilibrium constant)

Answer 7

too many reactants, not enough product (the reaction goes to the right)

Question 8

what happens when the reaction quotient Q = K (equilibrium constant)

Answer 8

the reaction is at equilibrium

Question 9

what is monoprotic

Answer 9

has one proton to donate so diprotic would be 2 e.g. HCl HBr