Rates Of Reaction :: Papers

Rates Of Reaction Aim To find out the effect of deadly concentration in dilute hydrochloric acid and milligram ribbon, and how much hydrogen gas is given off. Prediction I predict that as the concentration of the hydrochloric acid increases the time eat upn for atomic number 12 ribbon to brush aside will shine. Apparatus Saturated test tobacco pipe Rubber bung Bowl water Magnesium ribbon Concentrated hydrochloric acid Plastic tube Stopwatch Conical flask Measuring cylinder The concentration of the acid is going to be my only variable. It will vary the time taken for the magnesium ribbon to dissolve into the acid. Other things that I will be using are not going to be varied these are volume of hydrochloric acid and magnesium ribbon. The magnesium ribbon dissolves into the hydrochloric acid because then it collides with the particles inside the hydrochloric acid. Activation energy is minimum count of energy required for a reply to take place. For each of the concentrations I use the activation energy will be different. If the activation energy is high then only a small amount of particles will have enough energy to react but if the activation energy is low then a lot more than 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 increase or decrease depending on what the temperat ure is.