21 Chapters
TEST-BANK for
Chemistry: An Atoms First Approach
3rd Edition
Author(s): Zumdahl, DeCoste
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Sample Questions
  • Consider the titration of 300.0 mL of 0.591 M NH3 (Kb = 1.8 105) with 0.500 M HNO3. After 150.0 mL ...
  • Which of the following correctly labels the salts?HF (Ka = 7.2 104)NH3 (Kb = 1.8 105)HCN (Ka = 6.2 1010)
  • The reaction H2SeO3(aq) 6I(aq) + 4H+(aq) 2I3(aq) + 3H2O(l) + Se(s) was studied at 0C by the method ...
  • A 3.50-g sample of rice is burned in a bomb calorimeter with a heat capacity of 8.29 kJ/C. The ...
  • What is the percent by mass of ethanol (C2H5OH) in a 1.5-m aqueous solution?
  • Consider a galvanic cell based in the reaction Fe2+ + Cr2O72 Fe3+ + Cr3+ in acidic solution.What is ...
  • An archaeological sample contains 0.743 g of lead-206 and 2.145 g of uranium-238. Assume that all ...
  • A bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.107-g sample of ethylene (C2H4) was ...
  • You are told that metal X is a better reducing agent than metal Y. This must mean that:
  • A 10.0-g sample of solid NH4Cl is heated in a 5.00-L container to 900C. At equilibrium the pressure ...
  • The Cl-Kr-Cl bond angle in KrCl4 is closest to:
  • A 2.50-g sample of pitted prunes is burned in a bomb calorimeter with a heat capacity of 8.83 kJ/C. ...
  • The following question refers to the following system: 3Ag(s) + NO3(aq) + 4H+(aq) 3Ag+(aq) + NO(g) ...
  • Given CH3CO2H(aq) H+(aq) + CH3CO2(aq) at 25C, Ka = 1.83 105. What is G at 25C?
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