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Transcription of this question: 5.Both vinegar (a dilute aqueous solution of ethanoic acid) and bleach are used as cleaning agents.(b)(c)Outline why ethanoic acid is classified as a weak acid.A solution of bleach can be made by reacting chlorine gas with a sodium hydroxide solution.(g) + 2NaOH(aq) NaOCl (aq) + NaCl (aq) + H20(l)Suggest, With reference to Le Chåtelier’s principle, Why it is dangerous to mix vinegarand bleach together as cleaners.Bleach reacts with ammonia, also used as a cleaning agent, to produce the poisonouscompound chloramine, NH2Cl.(ii )Draw a Lewis (electron dot) structure Of chloramine.State the hybridization of the nitrogen atom in chloramine.(iii) Deduce the molecular geometry of chloramine and estimate its H—N—H bond angle.Molecular geometry:H—N—H bond angle:[2](iv)State the type of bond formed when chloramine is protonated.Sketch a graph of pH against volume of hydrochloric acid added to ammoniasolution, showing how you would determine the pKa of the ammonium ion.147Volume at equivalence (Vn)Volume of hydrochloric acid added(ii )(ii i)Suggest a suitable indicator for the titration, using section 22 of the data booklet.Explain, using two equations, how an equimolar solution of ammonia andammonium ions acts as a buffer solution when small amounts of acid or base areadded.

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