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QUESTION 1

  1. What is the pH of a buffer that consists of 0.2 M CH3CH2COONa and 0.528 M CH3CH2COOH? Ka of propanoic acid, CH3CH2COOH is 1.3 x 10-5

 

QUESTION 2

  1. Calculate the pH when 1.79 g of CH3COONa is added to 19 mL of 0.50 M acetic acid, CH3COOH. Ignore any changes in volume. The Ka value for CH3COOH is 1.8 x 10-5.

 

QUESTION 3

  1. Calculate the pH of a solution that results from mixing 38 mL of 0.14 M methylamine (CH3NH2) with 16 mL of 0.1 M CH3NH3Cl.  The Kb value for CH3NH2 is 3.6 x 10-4.

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  • Category:- Chemistry
  • Reference No.:- M91727662

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