practice%20exam1

practice%20exam1 - 1. How many moles of NO are formed from...

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1. How many moles of NO are formed from 8.44 moles of NO 2 in the following reaction when there is plenty of water present? NO 2 + H 2 O HNO 3 + NO A. 2.81 B. 25.3 C. 8.44 D. 5.50 E. 1.83 2. Substance A is a compound that does not form ions in solution. Based just on this information, what can you determine about substance A? A. A is an electrolyte B. A is not an electrolyte C. A is soluble in water D. A is insoluble in water 3. What volume of 0.244 M KCl solution is required to react exactly with 50.0 mL of 0.210 M Pb(NO 3 ) 2 solution? A. 97.4 mL B. 116 mL C. 43.0 mL D. 86.1 mL E. 58.1 mL 4. How many of the following compounds are soluble in water? Cu(OH) 2 LiNO 3 NH 4 Br K 2 S A. 0 B. 1 C. 2 D. 3 E. 4 5. Which of the following pairs of aqueous solutions will react when mixed? A. NH 4 NO 3 + Li 2 CO 3 B. Hg 2 (NO 3 ) 2 + LiI C. NaCl + Li 3 PO 4 D. AgC 2 H 3 O 2 + Cu(NO 3 ) 2 E. None of the above solution pairs will produce a reaction 6. Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of H 2 SO 4 and KOH are mixed. A. H + + - OH H 2 O B. 2K+ + SO 4 2- K 2 SO 4 C. H + + - OH + 2K + + SO 4 2- H 2 O + K 2 SO 4 D. H 2 2+ + - OH H 2 (OH) 2 E. No reaction occurs 7. Choose the statement below that is true .
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2 A. HF is a weak acid, so a HF solution consists of mostly nonionized acid molecules. B. The term “strong electrolyte” means that the substance is extremely reactive. C. A strong acid solution consists of only partially ionized acid molecules. D. The term “weak electrolyte” means that the substance is inert. E. A molecular compound that does not ionize in solution is considered a strong electrolyte. 8. Determine the oxidation state of P in PO 3 3- . A. +3 B. +6 C. +5 D. 0 E. -3 9. What element is undergoing oxidation (if any) in the following reaction? CH 4 + 2O 2 CO 2 + 2H 2 O A. O B. H C. C D. both C and H E. none of the elements is undergoing oxidation 10. The titration of 25.0 mL of an unknown concentration H 2 SO 4 solution requires 83.6 mL of 0.12 M LiOH solution to react completely. What is the concentration of the H 2 SO 4 solution (in M)? A. 0.20 M
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This note was uploaded on 02/11/2010 for the course CHEM Chemistry taught by Professor Nitche during the Fall '08 term at Berkeley.

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practice%20exam1 - 1. How many moles of NO are formed from...

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