1e03-tut2-q - 4. With respect to their behaviour in water,...

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CHEM 1E03 TUTORIAL #2 _____________________________________________________________________ Page 1 of 1 1. Complete and balance the following reactions: write N.R. if no reaction occurs. For all reactions that yield products, classify the reactions as precipitation (PPT), oxidation-reduction (RED), acid-base (AB), or other. As well, for all of the redox reactions, select the oxidizing agent. a) Mg(s) + Br 2 (l) b) NaOH(aq) + H 2 SO 4 (aq) (complete reaction) c) H 2 S(aq) + Fe(NO 3 ) 2 (aq) d) KCl(s) + H 2 O(l) e) P 4 (s) + O 2 (g)(excess) f) Na(s) + H 2 O(l) g) Li 2 O(s) + H 2 O(l) h) Zn(s) + HCl(aq) i) CaCl 2 (aq) + NaF(aq) j) Na(s) + H 2 (g) 2. What volume of 85.0% H 3 PO 4 by mass (density of 1.659 g/mL) is needed to prepare 5.00 L of 1.50 M H 3 PO 4 ? 3. How many grams of solid calcium hydroxide are required to completely neutralize 20.00 mL of the 1.50 M phosphoric acid prepared in problem 2?
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Unformatted text preview: 4. With respect to their behaviour in water, classify the following as weak or strong electrolytes and as strong acid, weak acid, strong base, weak base or salt ( e.g. NaCl - strong electrolyte/salt). KOH, H 2 O, CH 3 COOH, H 2 SO 4 , NH 3 , KI, CaCl 2 , H 2 CO 3 5. In a titration, 47.42 mL of 0.1234 M HCl solution completely neutralized a 50.00 mL Ba(OH) 2 solution. Calculate the molarity of the Ba(OH) 2 solution. 6. Assign oxidation numbers to each atom in the following species: Na 3 N P 4 KMnO 4 HClO 4 HClO P 4 O 10 7. Complete and balance the following reaction in acidic solution (propanol is converted to propanoic acid, a carboxylic acid): CH 3 CH 2 CH 2 OH(l) + Cr 2 O 7 2 − (aq) Æ CH 3 CH 2 COOH(aq) + Cr 3+ (aq)...
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This note was uploaded on 02/05/2010 for the course PHYSICS 1D03 taught by Professor N. mckay during the Spring '08 term at McMaster University.

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