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Unformatted text preview: SPRING 2009 CHM 467 01 ADVANCED INORGANIC CHEMISTRY (CHM467011S09) > CONTROL PANEL > PREVIEW ASSESSMENT: C467_ACID-BASE_SP09 Preview Assessment: C467_acid-base_Sp09 Name C467_acid-base_Sp09 Instructions Timed Assessment This Test has a 1 hour timer.The elapsed time appears at the top right of the window. A 1 minute warning will be displayed. [The timer does not appear when previewing this Test] Multiple Attempts This Test allows 3 attempts. This is attempt number 2. Force Completion This Test can be saved and resumed later. Question Completion Status: Question 1 10 points Save A Br nsted-Lowry acid is defined as a substance that __________. increases [OH- ] when placed in H 2 O decreases [H + ] when placed in H 2 O acts as a proton acceptor acts as a proton donor increases [H + ] when placed in H 2 O Question 2 10 points Save A substance that is capable of acting as both an acid and as a base is __________. autocratic amphoteric miscible autosomal conjugated Question 3 10 points Save Which one of the following is a Br nsted-Lowry acid? HNO 2 (CH 3 ) 3 NH + CH 3 COOH HF all of the above Question 4 10 points Save What is the conjugate acid of NH 3 ? NH 2 + NH 3 + NH 4 OH NH 4 + NH 3 Question 5 10 points Save The conjugate base of HSO 4- is SO 4 2- HSO 4 + H 2 SO 4 OH- H 3 SO 4 + Question 6 10 points Save The magnitude of K w indicates that __________ . water autoionizes very quickly the autoionization of water is endothermic water autoionizes very slowly water autoionizes only to a very small extent the autoionization of water is exothermic Question 7 10 points Save Which one of the following statements regarding K w is false? The value of K w is always 1.0 ! 10-14 . K w changes with temperature. K w is known as the ion product of water. The value of K w shows that water is a weak acid. pK w is 14.00 at 25°C Question 8 10 points Save Which of the following aqueous solutions has the highest [OH- ]? a 1 ! 10-4 M solution of HNO 3 a solution with a pOH of 12.0 pure water a solution with a pH of 3.0 a 1 ! 10-3 M solution of NH 4 Cl Question 9 10 points Save A 0.0035-M aqueous solution of a particular compound has pH = 2.46. The compound is __________ ....
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