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 100.0 mL of 0.10 M H2A (Ka1 = 1.50 104; Ka2 = 7.82 107) with 0.20 M ...
  • 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?
  • One mole of H2O contains 6.022 1023 atoms.
  • The boiling point of water is 373 K.
  • Consider the reaction:2ClF3(g) + 2NH3(g) N2(g) + 6HF(g) + Cl2(g)When calculating the Hrxn, why is ...
  • 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 ...
  • A 2.50-g sample of pitted prunes is burned in a bomb calorimeter with a heat capacity of 8.83 kJ/C. ...
  • A 10.0-g sample of solid NH4Cl is heated in a 5.00-L container to 900C. At equilibrium the pressure ...
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