A. What is the pH of a buffer prepared by adding 0.607 molof the weak acid HA to 0.406 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10-7   B. What is the pHafter 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid.   C. What is the pH after 0.195 mol of NaOH is added to the buffer from Part A? Assume no volume change on the addition of the base.

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A. What is the pH of a buffer prepared by adding 0.607 molof the weak acid HA to 0.406 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10-7

 

B. What is the pHafter 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid.

 

C. What is the pH after 0.195 mol of NaOH is added to the buffer from Part A? Assume no volume change on the addition of the base.

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