Acids and Bases - Arrhenius Model

Question 1

arrhenius model

Answer 1

• defined in terms of ions released in aqueous solution
• acids release H+ into water
• bases release OH- into water
• a metal hydroxide undergoes dissociation (base)
• MOH(s) -> M+(aq) + OH-(aq)
• a molecular acid undergoes ionization
• HA(aq) H+(aq) + A-(aq)
• more appropriately since it is in water
• HA(aq) + H2O(l) H3O+(aq) + A-(aq)
• HA could be a strong or a weak acid

Question 2

acid, base, or not

Answer 2

• HCl(aq) = acid
• NaOH(aq) = base
• H2O(l) = acid, base
• H2S(aq) = acid
• CH4 = not

Question 3

LiOH is ________

Answer 3

• a base

Question 4

H2O is ________ (double bond on O and single bond on both H)

Answer 4

• not a base or acid

Question 5

a strong bas undergoes _______ ionization in water

Answer 5

• complete

Question 6

HF is ________

Answer 6

• an acid

Question 7

HCl is _________

Answer 7

• an acid