Unformatted text preview: a for HClO. 12. Write NIE’s for the reactions that occur when perchloric acid and sodium hydroxide are added to a (C 2 H 5 )NH 3 Cl/(C 2 H 5 )NH 2 buffer. 13. Calculate the pH after the addition of 0.0250 moles of HCl to 1.00 L of a buffer solution of 0.0425M acetic acid and 0.0596M sodium acetate. Assume no change in volume. 14. For the titration curve below, determine the pK b for the base. A) 2.0 B) 3.0 C) 5.3 D) 7.0 E) 8.7 15. a) What is the pH at the stoichiometric point of 0.130 M HCOOH(aq) titrated with 0.130 M KOH(aq). b) Which indicator should be used for the titration above? A) methyl red (p K In = 5.0) C) bromothymol blue (p K In = 7.1) B) alizarin yellow R (p K In = 11.1) D) cresol red (p K In = 7.9)...
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This note was uploaded on 04/17/2011 for the course CHEM 1040 taught by Professor Prokiacpak during the Spring '08 term at University of Guelph.
- Spring '08