# Chem 401 Discussion Workshop  7 Name Exercise 12 NA C03 ( OHHcos For a 0,00345...

###### Question:

Chem 401 Discussion Workshop  7 Name Exercise 12 NA C03 ( OHHcos For a 0,00345 M solution of sodjum carbonate: CNaO4CCO a) Write the Kh reaction: b) Determine the value of Kb (H,CO;: Ka 4.3 x 107, Kg- 5.6 x 10l) e) Calculate the [(OH-] by... cl) set up the ICE table c2) solve using the simplification approximation c3) Check approximation: c4) Solve using the quadratic d) Determine the pH of the solution. D7-6

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