Measuring Reaction Rate Using Volume of Gas Produced Essay

1630 Words Dec 2nd, 2012 7 Pages
Chemistry 12 Formal Report
Measuring Reaction Rate using Volume of Gas Produced
By John Doe
23th October 2012

Introduction An essential element of chemistry is finding reaction rates. This is because chemists need to know how long a reaction should take. In addition to needing to know the rate of a reaction at any point in time to monitor how the reaction is proceeding. Many factors effect reaction rates, two shown above include temperature and concentration. Concentration affects the rate of reactions because the more concentrated a solution the more likely collisions between particles will be. This is simply because there are more particles present to collide with each other. When the temperature is higher, particles will
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This was accomplished by placing both the flask with bleach and the graduated cylinder with the cobalt (II) nitrate in a water bath for 10 minutes, and then adding the cobalt (II) nitrate to the flask, then back into the water bath. Hot water was used to increase the temperature, and cold water was used to adjust it.
The next run was a similar idea to the previous one, but the reactants were brought down to a temperature 10˚C below room temperature using ice. The steps to doing this are similar to the previous ones, but only this one required an addition of 20mL of water to the bleach solution before mixing. The reason being is so that the overall concentrations are half of their original vales. The run that followed after was also identical, but instead of adding 20mL, 60mL was added. Now the overall concentrations after mixing were one quarter of their original values.
The experiment was practically over, but there always had to be cleaning and instructed disposal of chemicals. The product(s) was/were instructed to be disposed in the designated container only for the waste solution. Finally, all the parties that participated in the experiment were obliged to wash their hands thoroughly with soap and water before leaving the laboratory.

Analysis and Results

The rate of production of oxygen for each reaction was slightly different. The rate of reaction is determined by the

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