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What is a buffer and what do you need to make one?
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Related A Level Questions
Explain trend in why the ionisation energies increase across the period
Given the reaction: H2SO4 + NaOH --> ? + H2O. (a). Work out the salt produced (?) and (b). calculate the pH of the remaining solution when 1.2 g of NaOH and 4.41 g of H2SO4 were added in a 500 ml solution. Of the unreacted H2SO4 95% dissociated.
How does the first ionization enthalpy change down group 2?
Please give the definition of Le Chatilier's principle. Use this to explain what would happen if you increased the temperature of an equilibrium in which the forwards reaction is exothermic.
What are Van der Waal forces ?
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