Uploaded January 2023 | Updated September 2026, 3 weeks ago

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How to calculate the pKa for a puffer

In the last step the pH of the buffer should be 7.8, not 7.85.... my apologies. The pKa therefore is then around 8.1.


For more practice calculations, please have a look at

amazon.co.uk/100-PRACTICE-QUESTIONS-BUFFERS-Workbook/dp/B0B37KWJ28/ref=d_pd_sbs_sccl_2_4/259-9672822-0314512?pd_rd_w=w1TtF&content-id=amzn1.sym.e915a13f-380a-44c0-b87a-2bc42d7457b9&pf_rd_p=e915a13f-380a-44c0-b87a-2bc42d7457b9&pf_rd_r=PCNQKRYZPE7BSTB9ZE71&pd_rd_wg=uTJyc&pd_rd_r=797ff11f-b76f-4a48-836e-d11a3bb792e5&pd_rd_i=B0B37KWJ28&psc=1