WA05_CHE-121-May2016 - Written Assignment 5 Chemical...

This preview shows page 1 - 3 out of 7 pages.

Written Assignment 5: Chemical Reactions in SolutionAnswer all assigned questions and problems, and show all work. 1.Define electrolyte and nonelectrolyte and identify each of the following substances as a strong electrolyte, weak electrolyte, or nonelectrolyte: (5 points)Electrolyte is a substance that conducts electricity when dissolved in water while a Nonelectrolyte is a substance that does not.
b.KCl-
c.HNO3- Strong Electrolyted.CH3COOH- Weak Electrolytee.C12H22O11 - Non-ElectrolyteReference: Chang 4.9)2.Write ionic and net ionic equations for the following reactions: (8 points)a.AgNO3+ Na2SO4AgNO3(aq) + Na2SO4(aq) Ag2SO4(aq) + 2NaNO3(aq)2AgNO3(aq) + Na2SO4(aq) Ag2SO4(aq) + 2NaNO3(aq)2Ag+1(aq) + NO3-1 (aq) + 2Na+1 (aq) + SO4-2(aq) 2Ag+1(aq) + SO4-2(aq) + 2Na+1(aq) + 2NO3-1(aq)b.BaCl2+ ZnSO4Ba2+ (aq) + SO42- (aq) BaSO4 (s)Ba2+ (aq) + 2 Cl- (aq) + Zn2+ (aq) + SO42- (aq) BaSO4 (s) + Zn2+(aq) + 2 Cl-(aq)c.(NH4)2CO3+ CaCl2Ca2+ (aq) + CO32- (aq) CaCO3(s)2NH41+ (aq) + CO32-(aq) + Ca2+(aq) + 2Cl1- (aq) 2NH41+ (aq) + 2Cl1- (aq) + CaCO3 (s)d.NaNO3+ KCl 1Copyright © 2014 by Thomas Edison State College. All rights reserved.
3.With reference to Table 4.2, suggest one method by which you might separate
(8 points)a) add NaCl b) add NaF c) add NaOH d) add NaF (Reference: Chang 4.24)4.Give the oxidation number of the underlined atoms in the following molecules and ions: (7 points)

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture