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Unformatted text preview: CHEMISTRY 1220 SECOND EXAM Show All Work ! 5 March 2008 Name (Printed ) ______________________________ Instructions : Do not separate pages. Do not share calculators, pens, etc. with others. Use only your own desk, and do not write on envelopes. Answers given without the work being clearly presented will receive no credit. Turn in your separated exam and envelope to your T.A. Note : This exam has 6 pages. By signing below, I agree not to use any programmable calculator, cell phone, listening or communication devices during this exam. (6) Signed: ______________________________ Section # ___________ Seat # ___________ (20) 1. Suppose we have a solution that was prepared by mixing 2.00 moles of H 2 SO 4 with water until the solution volume became 1.00 liters. Determine [H 2 SO 4 ], [HSO 4 – ], [SO 4 2– ], [H 3 O + ], and the pH of the solution. Answers: [H 2 SO 4 ] = _______, [HSO 4 – ] = _______, [SO 4 2– ] = _______, [H 3 O + ] = _______, pH = ______ 2 (5) 2. At 50ºC, if an aqueous solution has a pH value of 7.00, the solution will be: ( a ) acidic ( b ) basic ( c ) neutral ( d ) anhydrous ( e ) None of the above. (5) 3. Suppose we have solutions of NaOH and Ba(OH) 2 , and their molar concentrations are equivalent. If the pH of the NaOH solution is 10.00, the pH of the Ba(OH) 2 solution is most likely going to be closest to which of the following?most likely going to be closest to which of the following?...
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This note was uploaded on 03/06/2011 for the course CHEM 1220 taught by Professor Thanhtruong during the Spring '09 term at Utah.
- Spring '09