Other acids (weak) HF hydrofluoric – H3PO4 phosphoric **Note that the ion becomes the acid. – “ate” “ic” HC2H3O2 or CH3CO2H acetic – H2CO3 carbonic – HCN hydrocyanic – H2S hydrosulfuric – HNO2 nitrous – H2SO3 sulfurous – H3PO3 phosphorous – HClO3 chloric – HClO2 chlorous – HClO hypochlorous – 5. Formulas for diatomic elements HONClBrIF all exist as diatomics “Honkelbrif” – H2, O2, N2, Cl2, Br2, I2, F2 H. BrONClIF “Mr. Also mercury (I) cation is a diatomic cation Hg22+ – IV. Basic Stoichiometry and Chemical Calculations 1. Balance: → Fe + O2 Fe2O3 → SiCl4 + H2O SiO2 + HCl → PCl3 + H2O H3PO3 + HCl → CaO + P4O10 Ca3(PO4)2 → C2H6 + O2 CO2 + H2O → + NaCN HCN + Na3PO4 → Ba(NO3)2 + Al2(SO4)3 BaSO4 + Al(NO3)3 → + NaOH Fe(OH)3 + NaCl
Other acids (weak) HF – hydrofluoric H3PO4 – phosphoric **Note that the “ate” ion becomes the “ic” acid. HC2H3O2 or CH3CO2H – acetic H2CO3 – carbonic HCN – hydrocyanic H2S – hydrosulfuric HNO2 – nitrous H2SO3 – sulfurous H3PO3 – phosphorous HClO3 – chloric HClO2 – chlorous HClO – hypochlorous 5. Formulas for diatomic elements “Honkelbrif” – HONClBrIF all exist as diatomics H2, O2, N2, Cl2, Br2, I2, F2 “Mr. H. BrONClIF Also mercury (I) cation is a diatomic cation – Hg22+ IV. Basic Stoichiometry and Chemical Calculations 1. Balance: Fe + O2 → Fe2O3 SiCl4 + H2O → SiO2 + HCl PCl3 + H2O → H3PO3 + HCl CaO + P4O10 → Ca3(PO4)2 C2H6 + O2 → CO2 + H2O + NaCN → HCN + Na3PO4 Ba(NO3)2 + Al2(SO4)3 → BaSO4 + Al(NO3)3 + NaOH → Fe(OH)3 + NaCl
AP%20Chemistry%20Summer%20Review%2015-16.docx