final - Up: Back to the Chemistry 2000 test index Chemistry...

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Up: Back to the Chemistry 2000 test index Chemistry 2000, Fall 1996 Final examination You have three hours to complete this exam. You may not leave the examination hall in the first hour or in the last 10 minutes. The aggregate value of all questions on this exam is 100. Your answers must be recorded in the exam booklets provided. Please note the useful information at the end of the paper. 1. If a chemical compound which is destroyed by a first-order reaction has a half-life of 18s, how long would it take before less than 0.1% of the original quantity remains? [5 marks] 2. The rate of formation of a product P in a chemical reaction is measured as a function of the concentration of a reactant R and the following results are obtained: What is the rate law for this reaction? [4 marks] 3. What is the pH of a solution made by dissolving 100g of potassium hydroxide in 500mL of water at 298K? The molar mass of KOH is 56.1056g/mol. [8 marks] 4. Would the solubility of calcium hydroxide be higher in a pH 4 buffer or in a pH 10 buffer?
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This note was uploaded on 03/03/2012 for the course CHEM 2000 taught by Professor Roussel during the Fall '06 term at Lethbridge College.

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final - Up: Back to the Chemistry 2000 test index Chemistry...

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