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Monday, March 25, 2019

Does Concentrated Acid or Diluted Acid React Faster? :: Science Experiments Reaction Rates Essays

Does Concent considerd Acid or Diluted Acid React Faster?PlanI am going to carry out a reaction between atomic number 12 ribbon andHydrochloric acidulent. The aim of this investigation is to work out whichreacts sportinger, concent grazed acid or diluted acid. I will judge if thereaction is fast or slow by observing the bubbles which occur duringthe reaction and excessively observe if the magnesium has disappeargond. Onlythe concentration of the acid will be changed - the atomic number 12 is asolid.Magnesium + Hydrochloric Acid Magnesium Chloride + HydrogenMg(s) + 2HCl(aq) MgCl(aq) + H2 (g)thither are four main factors which may affect rate of reaction. Theseare -1. Concentration2. Temperature3. Catalyst4. Surface areaCONCENTRATION- if the concentration of the acid is increased, the rategoes faster. In a concentrated acid there are more(prenominal) particles in itthis essence that there is a more obtain of prosperous collisionsoccurring. If the acid was diluted, there are not legion(predicate) acid particles,which means that there is not much chance of an acid particle hittinga magnesium atom. At the start, there are plenty of Magnesium atomsand acid particles but they get use up during successful collisions.After, a time there a fewer Magnesium atoms and the acid is slightconcentrated so the reaction slows down. This graph shows this -volume of hydrogen quantify Diluted Acid Concentrated Acid= Acid particle = pissing scintilla = MagnesiumatomTEMPERATURE - at low temperatures the particles of reacting substancesdont have enough energy. So if the substances were het up(p) this wouldmean the particles take in energy. This causes them to move faster andcollide smartly very often. Also making more successful collisions.Therefore the rate of reaction increases.CATALYST - using a catalyst can recreate up reactions. If there is acatalyst in the reaction therefore the collision needs little energy in orderto be successful. This results into more collisions becomingsuccessful, so the reaction goes faster, catalysts are very strategicin industry. Reactions are speeded up at low temperatures, which meansless fuel is needed so money is saved.SURFACE AREA - if the Magnesium had a large surface area the atoms inthe outer mold will only collide with the acid particles but if themetal was powdered, many more atoms are exposed, so there is a greaterchance of successful collisions.Concentrated Acid = Acid particle = water molecule = Magnesium atomCOLLISION THEORYThe Collision Theory is used to predict the rate of reaction. TheTheory is based on the fact that for a reaction to take place, it is

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