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Brønsted-Lowry

How do you work out the pH of a solution when an acid and a base has been mixed together, I’ve been stuck on this question specifically :
Calculate the pH of the solution formed when 25.0 cm of 0.150 mol dm-3 aqueous sulfuric acid are added to 30.0 cm of 0.200 mol dm-3 aqueous potassium hydroxide at 25°C. Assume the the sulfuric acid is fully dissociated.
This is the last part to the question so the earlier parts might be needed to answer it but I don’t know 🤷🏾*♀️
find number of moles of acid or alkali left after reaction

find concentration

find pH
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Avatar for cocoabean20
cocoabean20
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okayy. The thing is, when I worked it out, I got H2SO4 left over but the question says I should assume ALL the sulphuric acid is dissociated. So how do I work it out?
Original post by josiediaby
okayy. The thing is, when I worked it out, I got H2SO4 left over but the question says I should assume ALL the sulphuric acid is dissociated. So how do I work it out?

find number of moles of H+
1 mol of H2SO4 gives 2 moles of H+

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