Investigating the effects of concentration on the rate of reaction essay - investigating the effects of concentration on the rate of reaction chemistry coursework aim: to investigate the effect of concentration on the rate of reaction between magnesium and hydrochloric acid introduction: this investigation is done to find. Measurements of reaction rates with different concentrations of a and b (see below) d rate 5 k[a][b] which reactions have the same overall order, and which rate is independent of the concentration of one reactant reactions a, b are both third (expt 1→5) doubling the concentration of iodine has no effect on the rate. Gcse science coursework (chemistry) planning: skill area p write down the aim of your investigation to investigate the effects of change in concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid briefly describe your preliminary experiment and include your results. Effect of concentration and pressure the rate of a chemical reaction can be changed by altering the concentration of a reactant in solution, or the pressure of a gaseous reactant if the concentration or pressure is increased: the reactant particles become more crowded there is a greater chance of the particles colliding. Research question: how do the finishes of iron nails and the presence of water affect their rusting rates standards addressed:chemistry grades nine students know the rate of reaction is the decrease in concentration of reactants or the increase in concentration of products with time b students know how reaction rates.
To test out how the concentration of hydrogen peroxide affects the rate of reaction first set up the apparatus below [aparatus picture not reproduced] 1 add 2cm3 of yeast to one test tube add 4cm3 of hydrogen peroxide solution at a concentration of 20% to the other test tube use a pipette to measure out. Factors that affect the rate of reaction of calcium carbonate with acid controlled assessment information for teachers the factors under investigation may include temperature, the concentration of acid, and/or the type of acid suitable acids include hydrochloric acid, citric acid and. 1764 words - 7 pages gcse science coursework (chemistry) planning: skill area pwrite down the aim of your investigationto investigate the effects of change in concentration on the rate of reaction between sodium thiosulphate and hydrochloric acidbriefly describe your preliminary experiment and include.
In the first part of the experiment, the rate equation will be determined by investigating the effect of the concentration of the reactants on the rate of the persulfate-iodide reaction in the second part, the activation energy will be calculated by studying the effects of temperature change and addition of a catalyst on the reaction. To investigate how the rate of reaction between sodium thiosulphate and hydrochloric acid is affected by changing the concentration chemistry essay. Magnesium + hydrochloric acid → magnesium chloride + hydrogen the hydrogen produced makes the reaction mixture effervesce (fizz) the faster the reaction, the shorter the time taken for the effervescence to stop you will study the effect of changing the concentration of hydrochloric acid on the rate of reaction.
Adv bio lab. In order to get maximum marks in this coursework it is vital that you discuss all factors which affect the rate of a reaction if you have decided, for example, to investigate the effect of acid concentration on the speed of a reaction, then everything else should be kept constant for a fair test, and this should be obvious in your. Stephanie chunmarch 5, 20102213-020 internal assessment – investigating the relationship between concentration of reactants and rate of reaction using hydrochloric acid and magnesium stripresearch questionto study the effect of manipulating the concentration of hydrochloric acid on the rate of.
Free essay: the sunlight could affect the speed therefore the experiment will take place in the shade, so that temperature shouldn't change the reaction. In these equations k(t) is the reaction rate coefficient or rate constant, although it is not really a constant, because it includes all the parameters that affect reaction rate, except for concentration, which is explicitly taken into account of all the parameters influencing reaction rates, temperature is normally the most important.