Solubility of Organic Compounds Depends on a Range of Factors - Management Assignment Help

Assignment Task

Introduction

• Provide an overview the topic, background, definitions, context, methods used by others, and the work of important people in the field.
• Make sure you DON’T include detail that is normally found in other sections (e.g. DON’T tell me the full procedure for your experiment – you will do that in the “method” section. DON’T tell me about your findings – you will do that in the results section.
• This section normally requires lots of in-text referencing so make sure you read extensively before writing your intro.
• WRITE IN YOUR OWN WORDS - paraphrase and summarise!
• In an introduction you normally do 3 main things:
• Establish context for your research (e.g.: talk about why we study the topic. What is the importance of it? Any important scientists whose work might need to be mentioned).
• For this task it may be a good idea to briefly mention the benefit of understanding properties of compounds in general, or of understanding the properties of some of the specific compounds you are testing.
• Explain background ideas/knowledge (e.g. solubility of organic substances and the factors which influence solubility) - This is the main thing you need to do in this practical report.
• Discuss the tools and methods available when doing experiments.
• Example paragraph:
• Solubility is defined as …. (Jones 2021). The solubility of organic compounds depends on a range of factors, which include… (Smith 2020). Determining the solubility of a substance in a particular solvent can be done in a range of ways, but a common way to do so is… (Jones 2021).
• Provide a research question OR hypothesis:
• Research question: How soluble are household substances such as …. in a solvent of ….
• Hypothesis: make a testable prediction: “When the solubility of …. is tested in a solvent of… it is expected that…”
• Method:
• Tell the reader what was done.
• Your methods section must be in third person, past passive tense and in paragraphs
• Must have enough detail to allow the reader to replicate the experiment if necessary.
• The following sentences do not fit scientific writing conventions, can you identify why?
• I gradually mixed salt with a known volume of water until no more salt was soluble
• We will test solubility by mixing salt with water
• Conductivity can be tested by connecting the solution to an electrode.
• The more accurate way to state this would be:
• “salt was gradually mixed with a known volume of water until no more salt was soluble”
• *this is my own method for this experiment*
• 1. Using a graduated measuring cup, measure out 10 ml of water and pour into a cup.
• 3. Measure out a teaspoon of pepper and add it to the cup of water and stir using a coffee stirrer.
• 5. Record the results of each test by writing the words "soluble" if the entire solid dissolves, "insoluble" if the solid does not dissolve,
• or "partially soluble" if some of the solid dissolves.
• 6. In another clean cup add 10 ml of water, but this time add a teaspoon of baking soda. Record the results in the table.
• 7. Repeat the same procedure for the Epsom salt, baking soda, and sugar.
• 8. Follow the same procedure with the cooking oil and vinegar in place of the water.
• And this is the material i have used
• Chemical or equipment Risks (describe) Safety measures
• Water Risk of slippage when dropped on floor. Non-slippery, non-porous, shoes with closed toes. Cleanup of spills immediately. Taking care when pouring. Use of protective coat.
• Cooking oil Risk of slippage when dropped on floor. Non-slippery, non-porous, shoes with closed toes. Cleanup of spills immediately. Taking care when pouring. Use of protective coat.
• Vinegar Risk of slippage when dropped on floor. Non-slippery, non-porous, shoes with closed toes. Cleanup of spills immediately. Taking care when pouring. Use of protective coat.
• Pepper Pepper may get in eyes Wear safety glasses
• Baking soda Baking soda powder may get in the eyes Wear safety glasses
• Results:
• Normally has data and some analysis (e.g. graphs, figures, numbers etc).
• All data must be well organised (e.g. in a table).
• An example table is given below. Note this is JUST an example and not to be used exactly as it is in your practical report. In your report make sure your table, its title and its columns suit the data you’ve collected.
• Table 1: Physical properties of baking soda and pepper
• Substance Solubility in water Solubility in oil Solubility in VINEGAR
• Baking soda Dissolve Partially dissolve Dissolve
• Pepper Partially dissolve Non-dissolve Non-dissolve
• Discussion
• Analyse your results:
• What does your data reveal? identify any patterns, trends, similarities and differences.
• What can you conclude about the substances being tested? Which of them are ionic/ polar covalent/ non-polar covalent? Which of them are hard to classify?
• Discuss any generalisations, connections and conclusions that can be drawn (e.g. what can you conclude about most/all ionic substances, or what can you conclude about water as a solvent).
• Sample paragraph
• When …..is mixed with….it was observed that…
• Similarly, when … was mixed with … a ….. was observed
• On the other hand when … was mixed with …. It was observed that….
• Thus it can be concluded that…..Discuss and explain your findings in context of theory and literature.
• Discuss your results in context of your research question or hypothesis. Was it conclusively answered / supported / disproven?
• Explain your results in relation to the theory presented in the introduction (e.g. explain why some of the substances you tested dissolved in water and others didn’t).
• Draw links to the literature and discuss any differences/similarities (e.g. compare the experimentally determined solubility with previously determined solubility depicted in the literature).
• Sample paragraph
• An explanation for why the combination of … and … behaved in this manner can be obtained by considering the…. Theory

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