An investigation of neutralization reactions Essay -- GCSE Chemistry C

An investigation of neutralization reactionsAimQuestion What is the transaction of changing the concentration of an al-Qaida, on thevolume of acid leaded to desolate it, when acid is added to it?The plan is to use 2 acids (Hydrochloric & Sulphuric) and angiotensin-converting enzyme alkali(sodium Hydroxide). The fence I need to use two acids is because thequestion applies to all acids and alkalis and to near use one of distributivelywould not enable me to come to a general conclusion. If there had been more(prenominal) time available, ideally I would run through preferred to use two alkalisas well as two acids.PredictionsFirst of all, here are the definitions for an acid and an alkaliAn acid is a substance that forms hydrogen (H+) ions when placed inwater. It enkindle also be described as a proton donor as it provides H+ions.An alkali is a soluble base and forms hydroxyl ions (OH-) when placedin water. It can be called a proton acceptor because it go forth accepthydrogen ( H+) ions and form H2O.A Hydrochloric acid scintilla (HCl) volition release one H+ ion and one Cl-ion when placed in water. A Sodium Hydroxide molecule (NaOH) willrelease one Na+ ion and one OH- ion when placed in water. This nitty-grittythat one molecule of NaOH and one molecule of HCl will neutralise eachother and produce H2O and a neutral coarseness called Sodium Chloride(NaCl). This means that to neutralise HCl and NaOH when they are atthe same concentration, you need bear upon amounts of each. GRAPHOn the other hand, a Sulphuric Acid molecule (H2SO4) will release twoH+ ions and one SO4-- ions. This means that you need two molecules ofNaOH to neutralise one molecule of H2SO4 and produce the neutral saltSodium Sulphate (Na2SO4). This means ... ... in thefollowing ways * instead of using Universal Indicator, I would use an indicator which only changed contort when the solution was Neutral rather than gradually changing as the pH became lower (e.g . Methyl Orange or Phenolphthalein).* To nab the pH more accurate next time, a pH meter could be used.* To get it very accurate, the acids and alkalis supplied should be an exact amount (I am not certainly whether the ones I used were exact). * To use very recently distilled water, because the water will become acidic if left for a long time.ReferencesBooksDunstan, S. 1968. Principles of chemical science. Van Nostrand Reinhold Pages 187-88 Pages 215- 253McDuell, B. 1997. GCSE Chemistry Classbook. Letts Pages 171-72 Pages 28-32 Page 262Computer programsMicrosoft Excel Version 97Microsoft Word 97Paint Shop Pro 4