CHEM 2OD3 : Quantitative Effect of concentration on the rate of a chemical reaction Lab.docx

• School: McMaster University
• Department: Chemistry
• Course: CHEM 2OD3
• Professor: Gaillard

Document Summary

Concentration on the rate of reaction lab. Control variables: mass of caco3, volume of solution, time between volume recordings, temperature, pressure, surface area of caco3. Materials: long graduated measuring tube, scale, timer, distilled water (200 ml used for making solutions, large bowl, retort stand, burette clamp, erlenmeyer flask and plug with attached tube, gas collection tube. The mass of calcium carbonate was added to the solution, the stopper placed onto the flask and the tubing was opened to allow gas to flow into the gas collecting tube: every 15 seconds the volume of the system was recorded for 5 minutes, or until the, steps 2 5 were repeated for the remaining solutions (0. 8m, 0. 6m, 0. 4m, & 0. 2m, the data was used to plot the production of co2(g) vs. time for each concentration of, next, the initial instantaneous rates of change of the reactions were determined at 5 reaction stopped.