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Question: 8 calculate ph of the following buffer solutions hhe a...

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8. Calculate pH of the following buffer solutions (HHE).

a. [H2CO3] = 0.6 M & [NaHCO3] = 0.3 M

b. [TRIS cation]= 0.2 M & [TRIS] = 0.05 M

9. For the two buffers in question 8, calculate the pH of the buffer after the buffer is diluted 10 fold (i.e., concentrations are decreased by a factor of 10)

(8a) _______________ (8b) _______________

10. What must be the ratio of be to prepare a buffer at pH = 7.40? (use the HHE)

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