Past Exam for CHEM 1251 - Principles of Chemistry I at UNC - Charlotte (UNCC)

Exam Information

Material Type:Final
Class:CHEM 1251 - Principles of Chemistry I
University:University of North Carolina - Charlotte
Term:Spring 2009
  • -1 Incorrect
  • Actual Yield
  • Standardize
  • Correct Responses
  • Concentration
  • Naoh Solution
  • Chlorous Acid
  • Limiting Reagent
  • Neutralization
  • Precipitation
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Sample Document Text

1. Write the systematic names of the following compounds: (a) Fe 2 S 3 iron(III) sulfide (b) Na 3 PO 3 sodium phosphite (c) S 2 O disulfur monoxide (d) HClO 2 chlorous acid 2. Write the formulas of the following compounds: (a) aluminum sulfate Al 2 (SO 4 ) 3 (b) arsenic pentachloride AsCl 5 (c) carbonic acid H 2 CO 3 (d) cobalt(II) cyanide Co(CN) 2 4. Combustion of isooctane, which contains only carbon and hydrogen, is the reaction used to standardize octane ratings for gasoline. (a) Combustion of 5.00 g isooctane results in the formation of 15.4 g carbon dioxide and 6.31 g water. What is the empirical formula of isooctane? 3. (a) Write and balance a molecular equation showing the reaction of a barium hydroxide solution with a sulfuric acid solution. Be sure to include all states of matter. (b) What kind(s) of reaction is this? Mark any that apply. 1 1 1 1 1 1 1 1 _____ acid-base neutralization _____ precipitation _____ oxidation-reduction (b) If the molar mass of...

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