2 Ionic product of water Kw

 

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Oxford Textbook Pages : 317, 319

CGP Revision Guide Pages : 83

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Show Specification Ref : 3.1.12.3

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AQA Jun 2015 Paper 4 Q4 do not write outside the box water dissociates slightly according to the equation h o i h aq oh aq the ionic product of water kw is given by the expression kw h oh kw varies with temperature as shown in table table temperature c kw mol dm a explain why the expression for kw does not include the concentration of water marks b explain why the value of kw increases as the temperature increases marks wmp jun chem c calculate the ph of pure water at c give your answer to decimal places do not write outside the box marks d calculate the ph of mol dm aqueous naoh at c give your answer to decimal places marks turn over for the next question turn over wmp jun chem
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