Factors affecting reaction rates lab. Factors Affecting Reaction Rates 2022-10-22

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Factors Affecting Reaction Rate Lab Report Assignment free sample

factors affecting reaction rates lab

Conclusion After performing experiments on how different factors affect reaction rate. Is it possible to vary the factors because, in terms of concentration, if we left water in a test tube and we add acid to it, the acidity is going to lower, and it will not be strong enough to react with the metal, and the collision will have already happened with the acid and H2O. We controlled the amount of hydrogen peroxide and the amount of each catalysts to make sure that the change of compounds are the only factor that affect the rate of decomposition. Repeat step 2 for the other test tube. If it took more than 18 — 22 seconds, repeat the steps 1 — 10 but now using 1 less drop of Na 2 S 2 O 3 solution 13.

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Factors Affecting Reaction Rates Lab Report .pdf

factors affecting reaction rates lab

Drop a piece of Zn into one of the test tubes and time how long the reaction takes. This is because this is near freezing and molecules are moving very slowly and there are very little collisions happening, so there is a slow reaction. Have two test tubes in the test tube rack. In this Experiment, we will investigate the effect of varying concentrations of Potassium Iodide on its reaction with The Ionic Equation for this reaction is: aq. We used a graduated cylinder and a balance to check if the amount and masses are the same. We got the result that the higher the temperature is, the faster the tablet dissolve; the lower the temperature is, the slower the tablet dissolves which completely corresponds to the theory.

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Factors Affecting Reaction Rates webapi.bu.edu

factors affecting reaction rates lab

The slowest reaction rate was the 1 co. This is because more surface area was exposed and more of the CaCO3 was able to react with the hydrochloric acid than the marble chips. Results: Particle Size Substance Tested Observations CaCO3 Reacted quickly; more surface area is exposed Marble chips Reacted quickly as well, but not as fast. Because particles have to collide to react successfully, so an increase in concentration of produces makes more collisions. For Part 3, we predicted that the more surface area the reactants have, the higher the rate of the chemical reaction will be. In part 1, temperature was a hard variable to control well, the temperature of two trials might not be accurately same which might affected the result of the experiment.

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Factors Affecting Rate of a Reaction, Chemistry Design Lab

factors affecting reaction rates lab

It turned to black and opaque. According to my table the flat piece of magnesium dissolved faster than the rest. Set up 2 test tubes in the test tube rack and put about 5mL of 1M hydrochloric acid in one and 3M hydrochloric acid in the other. Conclusion: In conclusion, I was able to see the effect of different conditions on the rate of reaction. If we add a catalyst to this reaction, we will increase the reaction rate, thus causing the reaction to speed up.

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Factors Affecting Reaction Rates

factors affecting reaction rates lab

By doubling the rate, yes you are doubling the reaction rate, because larger kinetic energy, more collisions and if you look at the temperature graph above, o can see the steep increase of the graph. This hypothesis was made according to the information we found in the textbook: Increasing the temperature of the reactants can cause the particles to move more quickly. This experiment will identify the rate constant from 5 solutions utilizing the above equation, only adding different concentrations of buffer, potassium iodide, starch, sodium thiosulfate, and hydrogen peroxide. Additionally by performing essentially the same experiments but with temperature changes one can determine how k is affected by temperature changes and the new activation energy. Watch the video on moodle to answer HCl , H 2 SO 4 , CH 3 COOH, H 3 PO 4 -List the metals in order of decreasing reaction rate with 6M HCl. The stock solutions are the following: 4 M acetone, 1 M HCl, and 0 M iodine.

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Free Essay: factors effecting reaction rates (chem lab)

factors affecting reaction rates lab

The changing concentrations of Potassium Iodide. The independent variable is the different types of catalysts, the dependent variable is the rate of decomposition. For concentr ation, I would try the exp eriment with variety of reactants to prove whether the conc lu sion we got this time is valid for all the chemical reactions. Discussion of Procedures, Variables and Controls Part 1 In part 1, the procedures we designed were not successfully done due to a shortage of supplies. Every reaction is different in that they all require different conditions and factors in order to have the most effective collisions.

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Discussion

factors affecting reaction rates lab

The rate was moderately high when CuCl2 was put in and the reaction was strong and very easy to tell. The data collected will then be used to calculate the rate law for the iodine-clock reaction. Record the number of drops of Na 2 S 2 O 3 solution is used to achieve approximately 20 second change in Data Table 1 Data Data Table 1 Trial Na 2 S 2 O 3 Drops Reaction time sec 1 8 19. The results proved that the hypothesis we made were mainly correct. We will be more successful in lighting a fire from kindling because this has more surface area than a log. Averagely, a piece of sodium carbonate took 53 sec to dissolve in 1.

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Lab Report Exp. 1

factors affecting reaction rates lab

Mix the solution again by swirling and monitor the colour 10. The temperature test was also successful because as soon as I dropped the alka seltzer tablet into the hot water, almost all of it dissolved right away. Use a syringe to draw up 0. One with cold water, one with hot water, and the last with room temperature water. The results does correspond to the theory. The data between two trials are similar, which proved that there is a very low possibility of wrong data. When there are an effective number of collisions that results in the formation of new particles then you have a successful reaction.

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CHM 101L M5 Factors Affecting Reaction Rates Lab webapi.bu.edu

factors affecting reaction rates lab

Position the 24-well plate to ensure that there are 6 wells down vertical axis and 4 wells across horizontal axis 2. Reaction time for 4. Also, from graphs the activation energy was determined to be 33. The controlled variables are the amount of hydrogen peroxide and the amount of each catalyst. Record the reactions in the table.


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5_1 Factors Affecting Reaction Rates Lab Report Dr. Z webapi.bu.edu

factors affecting reaction rates lab

We controlled certain variables. We also controlled the amount of water and the amount of tablets. The rate was moderate when Kl was added. There is one part that could ha ve been improved. Instead of using beakers, we chose to use cylinders in order to prevent overflowing reaction.

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