Chapter_15_Problems_in_Class

Chapter_15_Problems_in_Class - 3 A mixture of 0.20 mol NH3...

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Chapter 15 Problems (2 weeks) 1. #24 2. # 28 3. # 38 4. Calculate the pH of a solution prepared by dissolving 0.40 g of NaOH in enough water to make a total volume of 250 mL 5. What mass of NaOH must be added to enough water to make a total of 300.0 mL of solution having a pH of 12.30? 6. Arrange the following in increasing pH: NH 4 Cl HCl NaNO 2 NaNO 3
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7. Book # 48 8. Which of the following solutions will produce a buffer? Each has a volume of 1.0 Liter. 1. A mixture of 0.20 mol CH3COOH and 0.10 mol NaOH 2. A mixture of 0.10 mol CH3COOH and 0.20 mol NaOH
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Unformatted text preview: 3. A mixture of 0.20 mol NH3 and 0.10 mol HC1 4. A mixture of 0.10 mol NH3 and 0.20 mol HC1 5. A mixture of 1.0 mol HNO2 and 1.0 mol KNO2 9. Calculate the pH of each of the following solutions of 0.100 M sodium propanoate (NaC 3 H 5 O 2 ) (HC 3 H 5 O 2 , K a = 1.3 x 10-5 ) 10. The pH of a 0.100 M solution of an aqueous weak acid (HA) is 3.20. Find Ka 11. A 100.0 mL sample of 0.10 M C2H5NH2 (Kb = 5.6 x 10-4) is titrated with 0.2 M HNO3. Calculate the pH at the equivalence point. 12. Problem 84...
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