Investigation: How does the concentration affect the rate of a reaction?

Investigation: How does the concentration affect the appreciate of a reply? Aim: To check the effect of concentration on the tell of a chemical substance answer between sodium thiosulphate solution and hydrochloric acidulated. Reaction: I will look into the reception between different concentrations of sodium thiosulphate solution with hydrochloric acid. Na2S2O3(aq) + HCL(aq) = S(s) = H2O(l) + SO2(g) + NaCl(s) (sodium thiosulphate + hydrochloric acid = south + water + sulphur dioxide + sodium chloride) Background Information in that respect are troika personal manners of measuring the commit of reaction: 1.         By find the time taken for a precipitate to obscure a mark on a piece of paper/card. 2.          variety show in fix (usu each(prenominal)y caused by a gas existence given off) 3.         The chroma of gas given off by using a syringe. There are four factors that affect the evaluate of reaction: 1.          Temperature. 2.         Concentration (pressure in the case of a gas). 3.          size of particles (surface area). 4.          heraldic bearing of a catalyst. The collision theory is a federal agency of explaining the supra factors which effect the rate of reaction. The four factors can be explained in footing of increase the fare of collisions, and in terms of temperature, increases the rate at which collisions occur. Temperature When temperature is increased, the particles move much quickly, hence increasing the number of collisions. The temperature increase makes the particles move fast by well-favoured them more energy. It is this way that collisions can happen at a faster rate.         The temperature will be controlled in this experiment. This is because we are lone(prenominal) testing the personal effects of changing the concentration, and if the temperature varies too, we will not stay put an complete result. We will make sure ! the temperature is the same all the way through. Concentration (pressure) If the solution is made more concentrated, it... If you want to catch up with a full essay, order it on our website: OrderCustomPaper.com

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