A-Level
EDEXCEL
Chemistry
October 2023
1 Marks
QP-202310-Chemistry-U4 · Question 8
Question (excerpt):
8 At 100 °C, pure water has a pH of 6, but at 25 °C it has a pH of 7. This is because A the dissociation of water is endothermic, so the concentration of hydrogen ions is lower at 100 °C than at 25 °C…
8 At 100 °C, pure water has a pH of 6, but at 25 °C it has a pH of 7. This is because A the dissociation of water is endothermic, so the concentration of hydrogen ions is lower at 100 °C than at 25 °C…
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