ipl-logo

Rate Of Reaction Experiment

1322 Words6 Pages

Rate of Reaction Experiment
Rate of reaction is a term used to measure the time or speed that the reaction occurs in. A rate of reaction can be effected by different factors, such as the concentration, temperature, whether or not a catalyst is involved, the state that the reactants were in at the time of the experiment and the amount of pressure that was involved in the experiment. If the concentration, temperature and the amount of pressure involved were higher than the rate of reaction would be higher. Those factors would affect the speed and the amount the atoms are moving at therefore effecting the amount that the particles collide and hence impacting the rate of reaction.
The two reactants involved in the experiment are Sodium Thiosulfate …show more content…

The effect of temperatures on rate of reaction

Temperature (degrees Celsius) Room temperature 35 50
Rate of reaction (seconds) 69 56.03 53.63
Table 2: The effect of temperatures when the temperatures were above room temperature. Graph 1: The graph of the results from table 1 Graph 2: The graph of the results from table 2
The results displayed in all the graphs and tables had shown a decrease in time for the rate of reaction, as the temperature increases. The results support the idea that as the temperature of the solution increases, the time, the rate of reaction, decreases.
The results of the experiment had fluctuated based on the temperature of the solution. In reference to Table 1 and Table 2, the results was evident enough to identify the patterns and the trends when it came to using the temperature as an independent variable. The results predicted a trend that the higher the temperature, the higher the rate of reaction is. Whereas, the lower the temperature slowed down the rate of reaction. The trend states that the higher the temperature correlates to a higher rate of …show more content…

An error that occurred was the concentration of the solvent. Since there were two different dilution of the solution, the amount of water used was different, causing a different concentration and producing a different result. The amount of water used should be measured beforehand to reduce the random error and increase the precision of the results. A systematic error may have been the Bunsen burner being on safety flame instead of a blue flame. The long exposure to the low heat evaporated the water, thus increasing the concentration of Sodium Thiosulfate. The accuracy of the results was changed with the altered concentration. To increase the accuracy of the results, the blue flame should have been used to make the solution reach the temperature needed quicker. This would allow the Sodium Thiosulfate and the Hydrochloric acid to mix in a longer duration of

Show More
Related
1410 Words | 6 Pages

The reaction was repeated 3 times and average rate noted. From these rates a graph was plotted which describes the relationship of the pressure produced and number of drops added. The reaction rates were measured by Kpa/min and were written to 4 figures for precise results. Time was measured by stop watch. Table 4 shows a summary of all the groups which participated in the lab session.

Read More
993 Words | 4 Pages

Question 4: List the 3 errors; • Adding too many drops of NaOH at the same time would affect the results because we can’t determine the exact equivalent point when the color changed. The results won’t be accurate and that will affect all the data that are dependent on the amount of NaOH to titrate. • Other error could be the hardness to notice a color change; we always use a white paper under the flask to determine when the color changes right away. And if we don’t use the white paper it will be hard to determine the color change and the amount of NaOH that was used to titrate it. • Also other source of error could be by not rising the burette with NaOH before we fill up with it, or it maybe they were rinsing it with a lot of NaOH which could affect the data recording for NaOH amount of titration.

Read More
79 Words | 1 Pages

How is temperature related to this reaction? The higher the temperature the slower they move.

Read More
853 Words | 4 Pages

Introduction Alka-Seltzer has been on the market since 1931 and has helped to relieve indigestion and upset stomach. The tablets began to fizz and bubble when dropped into water. “The fizziness happens when baking soda (sodium bicarbonate) and citric acid react chemically in water. They yield sodium citrate, water and carbon dioxide gas, which causes bubbles.” Based on this information, we will measure the reaction time of AlKa- Seltzer dissolved in 200 ml of water at 3 different tempertures in the first portion of this experiment.

Read More
1117 Words | 5 Pages

The effect of pH on the speed of enzyme interaction with substrate chemicals Hypothesis: About pH: If the pH level is less than 5, then the speed of the enzyme reaction will be slower. About temperature: If the temperature stays the same, then the speed of the enzyme reaction will not be completely affected. Background information: The function of enzymes is to speed up the biochemical reaction by lowering the activation energy, they do this by colliding with the substrate.

Read More
563 Words | 3 Pages

Firstly, because the NaHCO3 compound was not stored in a sealed container, therefore dust particles could have changed the results, and making the product impure. Also, there are uncertainties associated with the instruments used in this experiment. This, if the products were measured slightly more than should be, this could have affected the concentrations of the solutions, and therefore causing a larger

Read More
1407 Words | 6 Pages

7. In this experiment, if the sucrose concentration were increased to 70 g/l would you expect sucrase activity to be significantly higher than the activity at 35 g/l. Explain your answer. No, because based on the results once it reached 30 g/l 35 g/l the results had stayed the same. There, the activity is lessening and coming to what looks like a plateau. 8.

Read More
759 Words | 4 Pages

The temperature of the sulphuric acid was not measured throughout the experiment, however the room in which the experiment was conducted was kept constant, so the chance of any large error due to unknown temperature of the sulphuric acid was most likely reduced. The amount of sulphuric acid used was also controlled by measuring 100mL with a 100mL measuring cylinder to ensure that the results would be consistent. The volume of the agar cubes was calculated from the surface area of each agar cube, both before and after they had been in the sulphuric acid. This increased the reliability of the results as it allowed the rate of diffusion of the sulphuric acid into the agar cubes to be calculated more accurately. The concentration of the acid was 0.1M, which was placed in all three agar cubes to maintain consistency of results.

Read More
1237 Words | 5 Pages

Verna Wang Hannah Palmer CHEM 101-069 Lab 11-19-16 Stoichiometry and Limiting Reagents Lab Report Purpose: We are using the reaction of sodium hydroxide and calcium chloride to illustrate stoichiometry by demonstrating proportions needed to cause a reaction to take place. Background: Just like a recipe would call for a specific amount of one ingredient to a specific amount of another, stoichiometry is the same exact method for calculating moles in a chemical reaction. Sometimes, we may not have enough of or too much of one ingredient , which would be defined as limiting and excess reagent, respectively.

Read More
1211 Words | 5 Pages

To determine the rate of reaction there are many method to be used for example, measuring the mass after the product has been added and measuring the difference in mass on the duration of a digital scale. Another method, which will be used in this experiment is using a gas syringe to measure the volume of the gas which has been produced. The cylinder inside, will be pushed out to show a quantitative presentation of the volume produced by the reaction. Hypothesis

Read More
1159 Words | 5 Pages

Exploration Title: Effect of Temperature on rate of Osmosis Submitted By: Abdulkarim Kamal Date Submitted: October 19th 2015 Subject: Biology HL Teacher: Mr. Nick   Aim: This is an investigation to determine the relation between temperature of a solution (sucrose) and the rate of osmosis Scientific Context: Osmosis is defined a passive transport process in which a fluid diffuses across a semi-permeable membrane, from an area of high solute concentration to an area of low solute concentration and vice-versa. There are various factors that could potentially influence the rate of osmosis; these factors include volume, concentration, and temperature. If all external factors that may interfere with rate of osmosis are controlled, the results will show equal amounts of fluid on both sides of the barrier (membrane); this is known as an “isotonic” state.

Read More
1471 Words | 6 Pages

Title: The effect of concentration on reaction rates Introduction: - Chemical kinetics is the branch of chemistry that is concerned with the mechanisms and rates of chemical reactions. The mechanism of a chemical reaction is a description of what happens to each molecule at a very detailed level—which bonds are broken, which new bonds are formed, and how the three-dimensional shapes of the chemicals changes during the course of the reaction. The rate of the reaction is a measure of its speed. The iodine clock reaction is a favorite demonstration in chemistry classes because it has an element of drama. Two clear solutions are mixed, producing a new clear solution.

Read More
1094 Words | 5 Pages

Though there is starch in the mix of chemicals, the triiodide doesn 't react with it because that starch is immediately consumed in a reaction with the thiosulfate. Equation 2: I3S- + 2 S2O32- → 3 I- + S4O62- • I3S- = Triiodide • S2O32- = Thiosulfate ion • 3 I-

Read More
1539 Words | 7 Pages

Introduction The goal of the experiment is to examine how the rate of reaction between Hydrochloric acid and Sodium thiosulphate is affected by altering the concentrations. The concentration of Sodium thiosulfate will be altered by adding deionised water and decreasing the amount of Sodium thiosulphate. Once the Sodium thiosulphate has been tested several times. The effect of concentration on the rate of reaction can be examined in this experiment.

Read More
841 Words | 4 Pages

Hydrochloric acid is a chemical used in the process of digestion and is a vital to our ongoing health and well being. The concentration of hydrochloric acid in the stomach is approximately 0.05 – 0.1 moles/litre (M). However hydrochloric acid at 18% is used in many industrial processes and has the capacity to melt steal. Aim The purpose of this experiment is to investigate how altering the concentration of hydrochloric acid, when reacting with sodium thiosulfate, can change the rate of a reaction.

Read More

More about Rate Of Reaction Experiment

Related Topics

Open Document