WA5_CHE-121-jun16 (1).odt - Name Xin Ding College ID...

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Name: Xin Ding College ID: Xin.ding Thomas Edison State University General Chemistry I with Labs (CHE-121) Section no.:OL121 Semester and year: July 2016 Written Assignment 5: Chemical Reactions in Solution Answer all assigned questions and problems, and show all work. Define electrolyte and nonelectrolyte and identify each of the following substances as a strong electrolyte, weak electrolyte, or nonelectrolyte: (5 points) Electrolyte is the substance that when dissovled in water results in a solution can conduct electricity. Nonelectrolyte does not conduct electricity when dissolved in water. H 2 O weak electrolyte KCl Strong electrolyte HNO 3 Strong CH 3 COOH Weak C 12 H 22 O 11 Noneletrolyte (Reference: Chang 4.9) Write ionic and net ionic equations for the following reactions: (8 points) 2AgNO 3 + Na 2 SO 4 Ag 2 SO 4 + 2NaNO 3 BaCl 2 + ZnSO 4 BaSO 4 + ZnCl 2 (NH 4 ) 2 CO 3 + CaCl 2 2NH 4 Cl + CaCO 3 NaNO 3 + KCl NaCl + KNO 3 (Reference: Chang 4.21) With reference to Table 4.2, suggest one method by which you might separate (a) K + from Ag + , (b) Ba 2+ from Pb 2+ , (c) NH 4 + from Ca 2+ , and (d) Ba 2+ from Cu 2+ . All cations are assumed to be in aqueous solution, and the common anion is the nitrate ion. (8 points) a) K + from Ag + , Add enought HCl to the solution wil have KCL and AgCl. AgCl is insoluble. (b) Ba 2+ from Pb 2+ , Add enought HCl to the solution to have PbCl 2 insoluble in water (c) NH 4 + from Ca 2+ , add H 2 SO 4 to have CaSO 4 which is insoluble in water
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  • Spring '15
  • Khurana
  • Reaction, Sodium, Chemical reaction, Sodium chloride

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