Ah, to calculate pH of an acetate buffer, just use pH = pKa + log([salt]/[acid])! For example, mix acetic acid and sodium acetate, put their concentrations in the log part, add to pKa (around 4.74), and done! Honestly, I’ve scribbled this on the back of a serradura pudding order slip while waiting for aunty’s hair to set—the smell of vinegar from the kitchen reminds me of acetic acid every time!
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