A buffer contains 0.010 moles of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate
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Question:
A buffer contains 0.010 moles of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per liter.
(a) Calculate the pH of the buffer.
(b) Calculate the change in pH when 5 mL of 0.5 M HCl is added to 1 L of the buffer.
(c) What pH change would you expect if you added the same quantity (5 mL) of HCl to 1 L of pure water?
Expert Answer:
Step 1 Buffer solutions are solutions that can resist pH changes Buffer solution contains a weak aci... View the full answer
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