Rates Of Reaction :: Papers

Rates Of Reaction Aim To find out the inwardness of stifling denseness in dilute hydrochloric acid and magnesium ribbon, and how more than hydrogen gas is given murder. Prediction I predict that as the concentration of the hydrochloric acid increases the measure taken for magnesium ribbon to melt leave decrease. Apparatus Saturated test tube Rubber give Bowl water Magnesium ribbon Concentrated hydrochloric acid pliable tube Stopwatch Conical flask Measuring cylinder The concentration of the acid is going to be my only variable. It entrust vary the time taken for the magnesium ribbon to dissolve into the acid. Other things that I ordain be using are not going to be varied these are masses of hydrochloric acid and magnesium ribbon. The magnesium ribbon dissolves into the hydrochloric acid beca custom then it collides with the particles inside the hydrochloric acid. Activation efficacy is minimum amount of energy required fo r a chemical reception to take place. For each(prenominal) of the concentrations I use the activation energy will be different. If the activation energy is postgraduate then only a small amount of particles will ware enough energy to react but if the activation energy is wretched then a lot more particles can react. The reaction will also be exothermic because it will be giving off heat and hydrogen gas. A change in concentration is a change in the number of particles in a volume. If we increase the volume the particles will collide more because they are crowded. Factors The factors that could affect the rate of reaction are as follows Concentration of Acid This could affect the rate of reaction because the higher that concentration of the acid the more particles there are so there is more collision per second. Temperature If the starting temperature of the acid is different each time then the speed at which the atoms will collide will increa se or decrease depending on what the temperature is.