Acids, bases and salts

Jul 16th, 2016
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notes on acids,bases and salts

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Acids, bases and salts1.2.3.Study the reaction below and answer the questions that followNH3 (g) + H2O (l)NH4+ (aq) + OH-(aq)(a) Define the term acid(b) Identify an acid in the above reaction(c) Explain your answers in (b) aboveA student mixed equal volumes of Ethanol and butanoic acid. He added a few drops ofconcentrated Sulphuric (VI) acid and warmed the mixture(i) Name and write the formula of the main productsName.Formula..(ii) Which homologous series does the product named in (i) above belong?A sample of water from a village in Trans Mara East District was divided into equal portionsand each mixed with equal volume of soap solution. The observations made are tabulated below:Sample ofwaterIIIIII4.Treatment before adding soapBoiledNo treatmentTreatment with washing sodaObservations made onshaking with soapLather form immediatelySlight lather form slowlyLather formed immediately(a) What type of hardness is present in water from the village. Explain(b) State one advantage of hard waterThe solubility of Iron (II) Sulphate crystals are 22oC is 15.65g per 100g of water. Calculatethe mass of iron(II) sulphate crystals in 45g of saturated solution at the sae temperature5.Hardness of water may be removed by either boiling or addition of chemicals:(a) Write an equation to show how boiling removes hardness of water(b) Name two chemicals that are used to r

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