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Author Question: What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL ... (Read 80 times)

nevelica

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What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL of solution having a density of 1.25 g/mL by 3.33 C? (The specific heat of the solution is 3.74 J/g-K.)
 
  A) -7.43 kJ
  B) -12.51 kJ
  C) 8.20 kJ
  D) -3.89 kJ
  E) 6.51 kJ

Question 2

SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g)  SO2 (g) + Cl2 (g)
 
  The reaction is first order in SO2Cl2 and the rate constant is 3.0  10-6 s-1at 600 K. A vessel is charged with 3.6 atm of SO2Cl2 at 600 K. The partial pressure of SO2Cl2 at 3.0  105 s is ________ atm.
  A) 0.85
  B) 3.2
  C) 1.5
  D) 0.19
  E) 9.3  104

Question 3

The correct name for HBrO4 is ________.
 
  A) hydrobromic acid
  B) perbromic acid
  C) bromic acid
  D) bromous acid
  E) hydrobromous acid


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nevelica

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)


frankwu0507

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Reply 3 on: Yesterday
Wow, this really help

 

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