distillation and gas chromatography based on their difference in boiling points. The boiling point of hexane is 69 degrees Celsius and the boiling point of toluene is 110 degrees Celsius. Three fractions were collected for both simple and fractional distillation. The first fraction was hexane since it had the lower boiling point. The second fraction was a mixture of toluene and hexane. The third fraction was toluene since it had the high boiling point of 110 degrees Celsius. Gas chromatography was also preformed
Premium Distillation Gas Water
What is the purpose of a conclusion? The purpose of conclusion is to conclude and analyze what you have already presented in your project and presentation. The purpose also is approving the problem statement and finishing the project with written conclusion about the subject. What should you include and what should you not include? It should include problem statement approval‚ information what has already been presented in the project and whole work problem statement analyze
Premium Citation 1920
This lab is an opportunity to observe‚ study‚ and learn about ecosystems and how the environment sustains life but in a much simpler and smaller scale which is called Eco Columns. The environmental conditions in the Eco Column could sustain life for several weeks‚ therefore over the course of the several weeks we will observe and study the interconnections between each ecosystems. A self sustaining requires components such as energy flow and chemical cycle. This experiment will evaluate our knowledge
Premium Ecosystem Ecology Life
Running Heading: hypothesis and conclusion Unit 4 Short Paper: Hypothesis and Conclusion Kaplan University Ashley Gramma CJ499: Bachelors Capstone in Criminal Justice Professor Christopher Elg March 12‚ 2013 Science proceeds by a continuous‚ incremental process that involves generating hypotheses‚ collecting evidence‚ testing hypotheses‚ reaching evidence based conclusions. (Michael‚ 2002). The scientific process typically involves making observations‚ asking questions‚ forming hypotheses
Premium Scientific method Theory Hypothesis
Coming to Conclusions The conclusion of an essay is a key factor of the overall effectiveness of an essay. Often seen as a brief summary of the paper‚ the conclusion frequently revisits the thesis of the paper‚ sometimes repeating lines or words from the introduction verbatim. This almost textbook-like format can be effective but is by no means the only option there is when a writer concludes an essay. In fact‚ the title of “the conclusion” can be quite misleading. Many types of conclusions do not
Premium Writing Conclusion The Reader
Gas Chromatography: Purifying alcohol Introduction The goal of this lab is to understand the principles of chromatography by purifying alcohol using fractional distillation. Running standards with gas chromatography we were able to see and calibrate our data to find not only how much ethanol our alcohol attained but also what a mixed unknown sample contained. Chromatography is a way of being able to separate substances in solution that can help not only identify the analytes (the studied
Premium Chemistry Gas chromatography Chromatography
Conclusion and recommendation Our project was shown the effects of three main factors: the entrance exam result‚ the number of years learning English and self-study time at home in the first year. We have some conclusions on the relationships between the factors. All of us know the fact is that if the result of the entrance exam was high along with a high number of years students have learned English and the amount of time they spend on self-studying at home‚ their IELTS score would be high and
Premium Learning
ANALYSIS OF MOUTHWASH Background Information: Commercial mouthwashes are mixtures of water‚ alcohol‚ dyes‚ flavorings‚ and other compounds. In this experiment‚ you will use gas chromatography to determine the alcohol content of the mouthwash. Since the volumes of alcohol and water are not additive when mixed‚ a calibration curve must be used. It will provide the correction factor needed for alcohol-water mixtures. The calibration curve will be prepared by placing a known amount of alcohol
Premium PH indicator Titration Mouthwash
CIVIL ENGINEERING ABSTRACT This report describes a compression test on concrete columns. The main aim of the tests was to illustrate the ultimate strength limit state of reinforced concrete columns in combined bending and compression and to demonstrate the influence of slenderness on the ultimate load capacity. Test methods are described. It was found that the concrete columns exhibited complicated behaviour‚ and had a squash load point of 342.7KN and moment at 0 KN.m‚ a decompression
Premium Beam Experiment Buckling
Conclusion BlueJ is an integrated development environment (IDE) for the Java programming language‚ developed mainly for educational purposes‚ but also suitable for small-scale software development. BlueJ was developed to support the learning and teaching of object-oriented programming‚ and its design differs from other development environments as a result. The main screen graphically shows the class structure of an application under development (in an UML-like diagram)‚ and objects can be interactively
Premium Programming language Development Computer program