How many milliliters of 0.105 M HCl should be added to 200.0…
How many milliliters of 0.105 M HCl should be added to 200.0 mL of 0.010 9 M triethylamine to give a buffer with a pH of 10.20? The Kb of triethylamine is 5.26 × 10−4. Hint: Calculate the millimoles of triethylamine. Set the millimoles of the triethylammonium ion equal to x and the millimoles of triethylamine equal to the initial number of moles minus x. Calculate pKa from the Kb, insert the values into the Henderson-Hasselbalch equation, and solve for x, which is equal to the millimoles of HCl needed. Use the concentration of the HCl solution to calculate the volume. (Report to 1 decimal places)