KEYChemistry 12Worksheet 4-2-Bronsted Acids and EquilibriaI26.Which is the stronger base, HCO or HCOO ? (1 mark)HCO327.Classify each of the following as: a strong acid (SA), weak acid (WA), strong base (SB),weak base (WB) or a spectator ion (S). (10 marks)a) FWBf)crSb)HIO,WAg)NH3WB10c)NO,Sh)O2SBd)HCIO,SAi)CH,COOHWAe)C20,2WBj)CIO4s28.What is the [OH]] in a solution made by adding 0.060 moles of calcium oxide to500.0 mL water? Be careful! (2 marks)2M. mol 0.060mal CaO = 0.12M=[CaO]0.5000L 0.12M0.120.24M0.12CaO - Caz++O2-O2-+H2O20H-Answer[OH]]=0.24M29.What is the [H3O] in a solution made by adding 0.020 moles of nitric acid to500.0 mL of water? (2 marks)[HNO3] = 0.020mal 0.040M SA so [Hfo'] C (acid) = 0.040M20.500LAnswer [H30+]=0.040M =30.If 0.10 M HSO3 is mixed with 0.10 M HC2O4 which species will donate a proton?/(1 mark)AnswerHC2O431.If 0.10 M HSO is mixed with 0.10 M HC.H2O,2. which species will donate a proton?I(1 mark)17AnswerHSO -17Chemistry 12-Worksheet 4-2-Bronsted Acids and EquilibriaPage 4 of 4 Pages