... is stopped the amount of H2O2 remaining is measured by the use of potassium permanganate (KMnO4) added in drops until the solution turns a reddish brown or pink color, the final reading on the titration tube is the amount of H2O2 that remains in the solution. PART B: In order to determine the amount of H2O2 initially present in a 1.5% solution, 10mL of ... at which the H2O2 decomposes to H20 and oxygen will increase. DATA: Catalase Activity KMnO4(mL) 10 seconds 30 seconds 60 seconds 120 seconds 180 seconds Baseline 3.3 3.3 3.3 3.3 3.3 Final reading 8.5 11.2 13.7 25 3.7 Initial reading 5....

• Word Count: 854
• Approx Pages: 3
• Grade Level: High School

... gas. After determining the mass we immediately determined the temperature of the CO2 by inserting a thermometer in the flask. During this time I recorded the barometer reading in mm. Last of all we filled the flask with water to the bottom of the stopper, and measured the volume of the water by transferring ... g Mass of flask and stopper assembly, filled with carbon dioxide 146.195 g Temperature of the air 24.8 C Temperature of the CO2 26.3 C Barometer Reading 751.5 mm Volume of the flask 253 ml Volume of the air at lab conditions 253 ml Volume of the CO2 at lab conditions 253 ml Volume...

• Word Count: 813
• Approx Pages: 3
• Grade Level: High School

... it was forced through the manometer by the rising gas. This was an accurate measure of how the enzyme concentration influenced the breakdown of hydrogen peroxide, as the quantity and speed of gas produced is dependant on the rate of reaction. All measurements were taken so that the stopwatch was started once the rubber tubing was sealed and the stopwatch stopped ... marked line, it was examined at eye level and the measurement taken when the bottom of the meniscus was lined up to the mark. This was the same for every reading. Safety Laboratory coats were worn during the investigation to...

• Word Count: 1147
• Approx Pages: 5
• Grade Level: Undergraduate

... as chloroplast isolation. The plant was purred in a blender which obliterated the cell structure, allowing the internal organelles to be separated from each other through the process of centrifuge. Low speed centrifuge was used to filter out and pellet the large cell debris, the mixture formally known as supernatant. The supernatant was in turn centrifuge at high speeds to obtain the ... , with readings taken almost exactly at each five-minute mark until the twenty-minutes mark was reached. The foil test tube reading was taken first and then rewrapped until the end of the experiment when...

• Word Count: 903
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate