Acid-Base Titrations February 21‚ 2013 Abstract: With the given volume measurement of KHP and NaOH‚ the students experimented to calculate the mass of unknown acid and its equivalence point using a method called titration and titration curve. The known volume of an acid solution would be titrated by slowly adding drops of solution into NaOH‚ and the volume of base needed to react with the acid is measured throughout. By using those data‚ the students are able to find what they
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Lab Report Microscopic Study: Investigating Osmosis in Red Blood Cells Lab Report Investigating Osmosis in Red Blood Cells Introduction: The flow of water across a permeable membrane is called osmosis‚ and during this process‚ water moves down its concentration gradient. A solution surrounding a cell is hypertonic if it contains more solute particles than the inside of the cell‚ and the water will move out of the cell into the surrounding hypertonic solution by osmosis. If the solution
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have a standard for the rest of the experiment. 16. Then you have a standard for the rest of the test. 17. Then pour apple juice into a graduated cylinder and measure up to 5ml. 18. Then pour it in the test tube on the rack. 19. Then add hydrochloric acid to break down the sucrose in the apple juice. 20. Do the same for
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Lab Report Microbiology Introduction Bacteria can be found almost anywhere. For human life‚ some help us‚ some hurt us‚ and others are neutral. It is now known that good bacteria‚ or normal microflora‚ can reach 1014 microbial cells. This is far more than the 1013 cells that make up the human body (Tannock‚ 1995). The total number of bacteria on Earth is estimated to be around 4-6 x 1030 (Horner-Devine‚ 2004). It is important to know the extent of bacteria‚ how they live‚ and how they are
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for several days. FT-IR spectra of Fe3O4‚ mercaptosuccinic acid and mercaptosuccinic acid functionalized Fe3O4 are shown in Figure 1(a-c)‚ respectively. In Figure 1a‚ the sharp band at about 585 cm-1 corresponds to the characteristic Fe–O vibration peak and the bands at around 3420 cm-1 are due to the stretching vibrations of the hydroxyls (–OH) on the surface of the Fe3O4. In Figure 1c‚ the S-H stretching vibrations of mercaptosuccinic acid appears in 2800 cm−1، C-H stretching vibrations appears in
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Genetics of Drosophila Lab Report: The test of heredity in fruit flies In my testings with breeding the fruit flies‚ I learned that the purpose of breeding them was to test how genetics pass from generation to generation‚ also known as heredity. We attempted to breed the flies and get them as close to a 9:3:3:1 ratio as possible. This would lead to an acceptable trait ratio. My hypothesis was that if we were to breed the flies in a stable environment‚ the most common fly (or the fly with the highest
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Executive Summary Caffeine is a stimulant for the central nervous system which will relax the muscle and increase the gastric acid and heart rate (Kelly‚ 2017). The analyzing of caffeine and caffeine metabolites in saliva is to quantitatively measure the ratio of concentrations of caffeine and metabolites. There are three different metabolites of caffeine and the majority of caffeine metabolite is paraxanthine. The ratio of concentration represents the activity of the first metabolism enzyme of caffeine
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For this lab‚ the expected outcomes are that when the heart rate and blood pressure are measured‚ both will increase when the heart has to pump against gravity‚ after exercise the heart rate will increase then return to normal‚ and as the subject inhales‚ it will be lower than when they exhale. Methods For this lab report‚ the laboratory manual (2009) was used for all labs. While completing lab five‚ electrodes were hooked up to the subject. After calibration for this lab‚
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Formal Lab Report Template Title Page Number of the experiment Title of the experiment Names of lab partners Date(s) on which the experiment was conducted Abstract = What are the main points of the entire report? Purpose or objective Key results Major points of discussion Main conclusion(s) Introduction = What is the background and purpose of the experiment? Purpose or objective One or two sentences‚ including the main method(s) used to accomplish the purpose. Background
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Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor
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