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Exam 2-1.4 - 15 Which ion(s is/are spectator ions(the ions...

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EXAM II Sample Exam 2-1 Dr. V. Williamson © Vickie M. Williamson 2007, All Rights Reserved 11. How many grams of CH 3 OH would have to be added to water to prepare 150 mL of a solution that is 2.0 M CH 3 OH? Atomic Molar Masses H = 1.0 g/mol C = 12.0 g/mol O = 16.0 g/mol A. 4.3 X 10 2 B. 0.300 C. 2.4 D. 9.6 X 10 2 E. 9.6 12. Which of the following will NOT be a STRONG electrolyte according to your textbook? A. CuCl 2 B. HClO 4 C. K 2 SO 4 D. H 2 SO 3 E. CsOH 13. In a titration experiment it was found that 96.00 mL of 0.139 M NaOH was required to neutralize a 25.00 mL sample of H 2 SO 4 . What was the molarity of the H 2 SO 4 sample? A. 11.7 B. 0.00214 C. 0.267 D. 7.00 E. 0.0855 14. (4pts) The difference between a strong and weak acid solution is: A. the amount of damage the acid will do to tissue. B. the amount of dissociation of the acid into ions. C. the existence of polyatomic anions in strong acids. D. the concentration of the acid. E. more than one of these are true
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Unformatted text preview: 15. Which ion(s) is/are spectator ions (the ions that appear on both sides of the complete ionic equation) in the formation of aqueous Mg(NO 2 ) 2 via combining aqueous solutions of Mg(OH) 2 and HNO 2 ? A. there are no spectator ions B. Mg 2+ and NO 2-C. Mg 2+ only D. H + only E. H + and OH-16. Which of the following would NOT indicate a chemical reaction? A. A solid dissolving in a liquid B. Two aqueous solutions combining to form a solid and another aqueous solution. C. Two solids combining to form bubbles. D. A colorless solution combining with a pale yellow solution to form a dark brown solution. E. Combining two solids to find that the beaker has become very hot. 17. How many grams of SO 3 (molar mass 80.0) should be produced from the reaction of 48.0 grams of oxygen gas according to the following equation? 2S(s) + 3O 2 (g) → 2SO 3 (g) A. 80.0 B. 26.7 C. 120. D. 48.0 E. 40.0...
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