Week 5.docx - Written Assignment 5 Chemical Reactions in Solution Answer all assigned questions and problems and show all work 1 Define electrolyte and

Week 5.docx - Written Assignment 5 Chemical Reactions in...

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Written Assignment 5: Chemical Reactions in Solution Answer 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) a. H 2 O- Weak b. KCl- Strong c. HNO 3 – Strong d. CH 3 COOH- Weak e. C 12 H 22 O 11 – Nonelectrolyte - Electrolyte – Substance that when dissolved in water the solution can conduct electricity - Nonelectrolyte- Substance can’t conduct electricity (Reference: Chang 4.9) 2.Write ionic and net ionic equations for the following reactions: (8 points)a.AgNO3+ Na2SO4b.BaCl2+ ZnSO4c.(NH4)2CO3+ CaCl2d.NaNO3+ KCl (Reference: Chang 4.21)3.With reference to Table 4.2, suggest one method by which you might separate (a)Kfrom Ag+, (b)Ba2+from Pb2+, (c)NH4+from Ca2+, and (d)Ba2+from Cu2+. All cationsare assumed to be in aqueous solution, and the common anion is the nitrate ion. (8 points) + A)Add Cl to Ag and K to make BaCl insolubleB)Add Cl to Ba and Pb to make PbCl C)Add SO4 to Nh4 and Ca to make CaSo4 D)Add SO4 to Ba and Cu to make BaSO4 (Reference: Chang 4.24) 4.Give the oxidation number of the underlined atoms in the following molecules and ions: (7 points) 1 Copyright © 2017 by Thomas Edison State University . All rights reserved.
a. Cl F- -1 b. I F 7 - +7 c. C H 4 - -4 d. C 2 H 2 - -1 e. C 2 H 4 - -2 f. K 2 Cr O 4 - +6 g. K 2 Cr 2 O 7 - +6 h. KMn O 4 - +7 i. NaHC O 3 - +6 j. O 2 – 0 k. NaI O 3 - +5 l. K 2 O - -2 m. P F 6- - +5 ( I think that is a negative ion) n. Au Cl 4- - +3 (Reference: Chang 4.47)

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