A buffer contains 0.035 mol of boric acid (pKa = 9.15) and 0.015 mol of sodium borate per liter. (a) Calculate the pH of the buffer. (b) Calculate the pH when 2.5 mL of 0.50 M HCl is added to 0.5 L of the buffer.
A buffer contains 0.035 mol of boric acid (pKa = 9.15) and 0.015 mol of sodium borate per liter.
(a) Calculate the pH of the buffer.
(b) Calculate the pH when 2.5 mL of 0.50 M HCl is added to 0.5 L of the buffer.
(c) Calculate the pH when 2.5 mL of 0.50 M HCl is added to 0.5 L of pure water.
Here we have to determine the pH of buffer solution containing 0.035 mol of boric acid pka= 9.15 and 0.015 mol of sodium borate per litre and pH of buffer when 2.5 ml of 0.5 MHCl is added to 0.5L of the above buffer solution.
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What about Part C?
Additionally for part B I'm not really getting the bottom of the 2nd page where have the
Wouldn't it be better to set
9.15 + log((7.5mM - 1.25mM)/17.5)?
So don't need to know equation?
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