Chemistry Reaction Rate Lab Report

Reaction Rate Lab Report

The purpose of this lab experiment was to explore the rate of a chemical reaction add different temperatures and with different reactant particle sizes. This experiment was conducted for the purpose of inquiry. An inquiry about, “What are the effects of temperature and a reactant’s particle size on reaction rate?” The hypotheses of this experiment were 1. If you increase the temperature of a reaction, then the reaction rate will increase because particles experience more collisions at higher temperatures. 2. If you decrease the particle size of a reactant, the reaction rate will increase because more of the reactants surface area is exposed allowing more particles to make contact with each other. The variables of this experiment include independent variables such as the temperature and particle sizes, and dependent variables such as reaction rate. The materials needed for this experiment are as follows; a 250 mL graduated cylinder, a thermometer, water, timer, four 250 mL beakers, seven 1,000 mg effervescent tablets, two pieces of filter paper, 600 mL beaker, ice, and finally, a hot plate.

The procedure for this experiment are as follows. Step 1, gather needed materials which are listed above. Step 2, measure the reaction rate at approximately 20℃. Substep A, using a graduated cylinder, fill a 250 mL Beaker with 200 mL of water. Substep B, measure the temperature of the water and record in data. Substep C, reset the timer. Start the timer while placing a full tablet into the beaker. Substep D, record the data. Substep E, compute the reaction rate to the nearest mg/L/sec. Record this last column of the table. Step 3, measure the reaction rate add approximately 40 ℃. Repeat Step 2, heating the water to approximately 40 ℃ using a hot plate during substep A. Step 4, measure the reaction rate at approximately 65 ℃. Repeat Step 2, heating the water to approximately 65 ℃ using a hot plate during substep A. Step 5, measure the reaction rate at approximately 5 ℃ repeat step two, chilling the water to approximately 5 ℃ inside and Ice during substep A. (To create an ice bath, Place 100 mL of ice and 100 mL of water in a 600 mL beaker of ice water and wait until the temperature reaches approximately 5 ℃. To save time, you may wish to set up the ice bath, using an additional 250 mL Beaker, while working on step 4.) Step 6, measure the reaction rate for a full tablet. Substep A, using a graduated cylinder, fill a 250 mL beaker with 200 mL of water. Substep B, reset the timer. Start the timer while placing tablet in the beaker. Substep C, record the data. Substep D, compute the reaction rate to the nearest mg/L/sec. Record it in the last column of your data table. Step 7, measure the reaction rate for a partially broken tablet. Repeat step 6, but this time break the tablet into eight small pieces on a piece of filter paper. Make sure to place all the pieces into