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Chemistry AP Ch. 14
Acids, Bases, and Aqueous Equilibria
Question | Answer |
---|---|
Characteristics of Acids | Sour |
Characteristics of Bases | Bitter; Slippery |
Arrhenius Acid/Base | acids produce hydrogen ions in aqueous solution while bases produce hydroxide ions |
Bronsted-Lowry Acid/Base Model | Acids are protons (H+) donors and bases are proton acceptors |
Lewis Acid/Base Mordel | Acids are electron pair acceptors while bases are electron pair donors |
Hyrdronium Ion | H30+; can be used interchangably with H+. |
Conjugate Acid | Base + Proton (H+) |
Conjugate Base | everything that remains of an acid molecule after proton is lost. (HCl -> Cl-; HC2H3O2->C2H3O2-) |
Acid Dissociation Constant | A stupid name that Jones could use to throw us off and make us miss unnecessary points because we didnt read her notes. It's a fancy name for Ka |
Conj. Base of Weak Acid | strong conj. base. much stronger than water. |
Conj. base of Strong Acid | weak weak weak conjugate base. |
Amphoteric Substance | Substance that can act as an acid or as a base (H20, Fe(OH)3) |
Ion product constant of water | See Dissociateion constant of and acid. its just another name for a Kw; always 1E-14 at 25 degrees C |
At 25 degrees [H+][OH-] | ALWAYS EQUALS 1E-14. |
Finding pH from [H+] | -log[H+] |
Finding [H+] from pH | 10^(-pH); antilog(-pH) |
pH of a polyprotic acid | if you are finding the pH ONLY, then you only have to do the first dissociation. the others are negligibly small |
finding the K value for a reverse equasion | K^-1; 1/K |
MetallicOxide (like CaO) dissolved in water | Metallic Hyrdoxide (like Ca(OH)2) |
Non-metallicOxides (like CO2) dissolved in water | Weak Acid! (like H2CO3) |
Strong Acids new from last year (excludes HNO3, HCl, H2SO4) | HClO4; HI; HBr; H2CrO4; HMnO4 |
Oxyacid | acidic proton connected to O (HOCl) and the more Os, the more acidic |
Organic Acids | have carboxyl groups. (COOH) |
Salts of Highly Charged Metals | Produce acidic solutions; AlCl3 + 6H2O -> Al(H2O)6(3+) + 3Cl-; which then causes the rare instance of a H+ breaking off in Al(H20)6(3+) -> Al(H20)5(OH)(2+) + H+ |