Questions asked by Wendy

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• Salicylic acid has a Ka of 1.1 x 10^-3. Calculate the ratio of the concentration of salicylic acid and its sodium salt in a solution that has a pH of 2.50?
  
• What is the #K_a# for a #"1.0-mol L"^(-1)# #"NH"_4^(+)# solution with a #"pH"# of #4.64# ?
  
• Why can you say in: HCl + H2O -> Cl- + H3O, that the moles of HCl is equal to moles of H30+?
  
• From what primary germ layers are the primary constituents of the skin derived?
  
• Unknown solution of CH3COOH of 20mL is titrated against a solution of 0.031 mol L^-1 NaOH. 10mL of the base solution is required to reach the equivalence point. Calculate to concentration of the CH3COOH solution?
  
• Why is the chloride ion not bonded to the pyridinium ion in pyridinium chloride?
  
• Why does C-N have a greater electron density than C-Cl?
  
• How do you name this compound?