F05L18_6 - substances In Word a S in SO 2 b C in COCl 2 c...

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1 B. Oxidation of Metals by Acids and Salts 1. oxidation by metals Metal + acid salt + H 2 (g) a. Ex. 2. oxidation by salts 3. Pr. Ex. 4.9, BLB p142 (a) Write the balanced molecular and net ionic equations for the reaction between magnesium and cobalt(II)sulfate. (b) What is oxidized and what is reduced in the reaction? C. oxidation numbers – also “oxidation states” – the actual charge on a monoatomic ion, or the hypothetical charge assigned to an atom of a polyatomic ion or molecule using a series of rules – it’s for keeping track of electrons D. Assigning Oxidation Numbers – see oxidation number handout 4.49 Determine the oxidation number for the indicated element in each of the following
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Unformatted text preview: substances: In Word a) S in SO 2 b) C in COCl 2 c) Mn in MnO 4-d) Br in HBrO e) As in As 4 f) O in K 2 O 2 V. Concentrations of Solutions A. Molarity – a term that quantifies concentration 1. 2. Pr. Ex. 4.11, BLB p147 Calculate the molarity of a solution made by dissolving 5.00 g of glucose, C 6 H 12 O 6 , in sufficient water to form exactly 100 mL of solution. M = moles of solute L of solution 2 B. Expressing the Concentration of an Electrolyte – when ionic compounds dissolve, concentration of ions in solution depends on chemical formula. 1. 2. 3. Pr. Ex. 4.12, BLB p147 What is the molar concentration of K + ions in a 0.015 M solution of potassium carbonate? (...
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This note was uploaded on 03/12/2010 for the course CHEM 140 taught by Professor Ferrence during the Fall '08 term at Illinois State.

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F05L18_6 - substances In Word a S in SO 2 b C in COCl 2 c...

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