Monday, January 13, 2014

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

Investigation: How does the concentration affect the govern of a reception? Aim: To check the effect of concentration on the appreciate of a chemical substance response between sodium thiosulphate solution and hydrochloric acidulated. Reaction: I will look into the reaction 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 = randomness + water + sulphur dioxide + sodium chloride) Background Information at that place are troika personal manners of measuring the rate 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 troop (usu each(prenominal)y caused by a gas existence given off) 3.         The spate 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.          comportment of a catalyst. The collision theory is a federal agency of explaining the above 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.
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Temperature When temperature is increased, the particles move more(prenominal) quickly, hence increasing the number of collisions. The temp erature increase makes the particles move f! ast-paced 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 make of changing the concentration, and if the temperature varies too, we will not stay put an faultless 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 suck up a full essay, order it on our website: OrderCustomPaper.com

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