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The equilibrium N2O4 (g) -->--< 2NO2 (g) is set up when N2O4 dissociates. When 0.0370 moles of N2O4 dissociates at 25 degrees in a 0.5dm3 sealed container, 0.0310 moles of N2O4 remains at equilibrium. Calculate the value of Kc for this reaction.

The first step is to formulate the Kc expression. Kc is the &quot;concentration of the products / concentration of the reactants&quot;. We show concentration is in moldm -3 by using square brackets. The mola...
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Answered by Harry M. • Chemistry tutor
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Finding the tangent of an equation using implicit differentiation

y 2 e 2x = 3y + x 2 1) Differentiation: Product rule, Explicity differentiation.2) Rearrangement: Collecting terms, Making dy/dx subject.
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Answered by Paul J. • Maths tutor
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How should I tackle a really long and complicated unseen passage?

Firstly identify the main clause! Find the verb, then the subject (if there is one) and then the object. Look for any particular 'signpost' words that might suggest there is a subordinate clause (e.g. 'cum',...
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Answered by Charlotte C. • Latin tutor
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How is it best to learn the set texts?

Don't just memorise the English translation! Make sure you understand how the sentence fits together grammatically e.g. identify the subject, object and the main verb and see what agrees. Then make a note of...
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Answered by Charlotte C. • Latin tutor
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What is the difference between avoir and etre in the passé composé?

Avoir (to have) and être (to be) are both auxiliary verbs used in the perfect tense in French. The majority of words take avoir in the passé composé, e.g. ' I played' becomes j'ai joué. All reflexive verbs i...
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Answered by Felicity G. • French tutor
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