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Unformatted text preview: HCl with stirring until solution is colorless, then discard solution down the drain. 2. a. The difference between monoprotic and diprotic acids is that monoprotic acids can only donate 1 Hydrogen proton, while diprotic acids can donate two Hydrogen protons. b. An equivalence point is when the NaOH is chemically equivalent to the acid, while the end point is when the color change to the reaction to indicating equivalency. c. Half-equivalence point is when one half of the acid is converted to the conjugate base, while an equivalence point is when the NaOH is chemically equivalent to the acid. 3. a. On separate sheet of paper b. Numb. Of Equivalents= 32.0ml NaOH*.100M NaOH= 3.2 mols NaOH c. Number Equivalents of Acid= 3.2 mols Acid d. Equivalent Mass of Acid= .653g Acid/3.2mols Acid= .204 g Acid e. pK(a)= pH= 5.29 f. K(a)= e^(-5.29)= .00504 g. Unknown Acid= Potassium Hydrogen Phthalate...
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- Spring '08
- pH, Sodium hydroxide, unknown weak acid, NaOH solution, titrating KHP