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A solution of ethanoic acid is made by dissolving 3g of pure liquid propanoic acid in 500cm^3 water. Given the pH of the solution is 2.98, calculate Ka.

Before using numbers from the question: 1)What is pH? pH = -log[H + ] Square brackets mean concentration of H+ so we need to convert given pH to [H + ] in the weak acid coefficient 2) To find the concentrati...
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Answered by Sofia H. • Chemistry tutor
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To what extent was Lloyd George's fall from power in 1922 the consequence of his own failings?

Outline of argument: In 1918, Lloyd George was acclaimed as the ‘man who won the war’ which led to a level of popularity with the people of Britain that the Conservatives of the coalition took advantage of i...
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Answered by Elizabeth P. • History tutor
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How should I structure an A- Level History essay?

All history essays begin with an introduction- this section of your essay should define and explain the criteria to which you are judging the question by (for example from a political or economic perspective...
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Explain why water has a higher boiling point than hydrogen iodide.

Water has a greater boiling point than hydrogen iodide as water has hydrogen bonds, whereas iodine only has permenant dipole-dipole interactions. Hydrogen bonds are stronger than permenant dipole-dipole inte...
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Answered by Matthew J. • Chemistry tutor
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Explore the idea of being an outsider' in 'Mrs. Dalloway' by Virginia Woolf

In order to answer any essay question, planning is key. The first thing to do here would be to figure out all of the characters considered 'outsiders' in this novel by Woolf. This would include Lucrezia and ...
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Answered by Harriet L. • English tutor
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