I have attached all files as well as draft feedback and an example of how the assignment should be set out. The assignment was started but is not finished and I would appreciate if it could be done.
Cairns School of Distance Education YEAR 12 CHEMISTRY Semester 2 Term 3 Assessment Task 3 Extended Experimental Investigation C H EM IS TR Y NAME: TEACHER: N. Hermon UNIT: Consumer chemistry ASSESSMENT TECHNIQUE: Extended Experimental Investigation CRITERIA TO BE ASSESSED: Knowledge and Conceptual Understanding Investigative Processes Evaluating and Concluding DATE DUE: 13/09/19 TIME ALLOWED: 3 Weeks ASSESSMENT TASK 3 – Extended Experimental Investigation CONTEXT: This term you have studied organic chemistry. This assessment examines your ability to apply this knowledge in order to: design and carry out a scientific investigation, modify preliminary procedures, collect and analyse experimental data (primary), analyse researched secondary data comparing and contrasting it with your own data submit your assignment as a scientific report involving evaluation and justification of conclusions. CONDITIONS: When using the chemistry kit from CSDE ensure that you read the safety material and complete a risk assessment which should be handed in with the report Carry out individual titration experiments with adult supervision Show all formulae, working and final answers in a logbook. Present relevant information in a scientific report (1000 -1500 words in length – discussion, conclusion, evaluation and recommendations). Additional: Checkpoint 1 = Research , EEI initial Proposal plus Risk Assessment is due Friday Week 6 teacher to review and give approval to commence experimenting. Checkpoint 2 = Draft report due Friday Week 7 (self-marking checklist given) Checkpoint 3 = Final report due Friday Week 9. Monitoring Checkpoints for your task IS COMPULSORY. SUBMITTING A DRAFT IS COMPULSORY. You will need to resubmit your risk assessment forms with your final report. Your draft will be assessed, IF THE FINAL REPORT IS NOT SUBMITTED ON TIME. TO BE COMPLETE BY SUPERVISOR Supervisors are requested to make a copy of this completed test prior to posting and to keep same in their possession. Supervisor’s Declaration I declare that the student named above completed this assessment item in accordance with the conditions and instructions appearing on the test paper and/or the accompanying notes, and that I was present for the duration of the test. Name of supervisor: Supervisor’s signature: Date: YEAR 12 CHEMISTRY, 2019 TASK EXTENDED EXPERIMENTAL INVESTIGATION Consumer Chemistry Develop a planned course of action. Clearly articulate research question and the hypothesis, providing a statement of purpose for the investigation (aim) Provide descriptions of the experiment Show evidence of modification or student design Provide evidence of primary and secondary data collection and selection Execute the experiments Analyse data Discuss the outcomes of the experiment Evaluate and justify conclusions Present relevant information in a scientific report (800-1000 words in length – discussion, conclusion, evaluation and recommendations). TASK DESCRIPTION Part A: Conduct preliminary, non-experimental research that covers your chosen topic (based around titration, acids/bases). Part B: Based on focus questions that your research prompts you to ask, formulate a hypothesis that would describe one aspect of your chosen topic that is of interest to you. Be able to justify your hypothesis using your research in Part A and that sufficient secondary data is available for comparisons in the discussion of your report. Ensure that it can be completed in the time provided and that your investigation has enough scope and rigor by submitting your focus questions and procedures to your teacher. Part C: Design and carry out the investigation with adult supervision, after a preliminary discussion with your teacher. Part D: Present your assignment as a scientific report and logbook SUGGESTED TOPICS Volumetric analysis is a form of chemical analysis in which the concentration or amount of a substance A is determined by measuring the volume of a solution B needed to completely neutralise or react with all of substance A. This is achieved through a process known as titration. Below are some potential quality control investigations to monitor the organic substances, wine and vinegar. You are permitted to choose other topics if you are interested in a particular idea or context but this MUST be discussed with the teacher first. A comparison of titration volumetric analysis and electrical conductivity method on measuring the acid content in commercial vinegar brands or white wines. Compare the titratable acidity of a degassed wine that has been boiled (to remove volatile acetic acid), and an unboiled sample, (not boiled). High volatile acidity VA is undesirable in wine. A VA of 0.03% -0.06% is produced during fermentation and is considered normal. NOTE: You should approach this unit of work assuming that you have a question to answer; that is you will need to submit a report that presents experimental evidence that supporting a specific conclusion. The EEI JOURNAL. Each student is to create an electronic log book / experimental notebook You will need to keep a journal with a record of your planning, thinking, decisions, data and calculations. DEVELOPING A PLANNED COURSE OF ACTION 1. Read the task criteria sheet completely and thoroughly. 2. Conduct library research. Your notes from this library research will form the basis of the introduction to your EEI report. It will be used to tell a story that generates interest in the reader for the field of your research and link to the practical investigation to follow. 3. Decide on the title of your experimental investigation. 4. Plan your approach (flow-chart the procedure) 5. Decide what initial trials you will undertake, how many trials etc. 6. Clarify the chemical principles. 7. Locate your equipment 8. Organise the materials/equipment. 9. Read the Material Safety Data Sheets (MSDSs) and identify safety issues and precautions that will be necessary when using the materials. This must be submitted before starting experimental work. 10. Perform the investigation. You should record all observations, measurements, problems, and changes in approach and/or modifications to your initial plans and procedure in your journal. 11. Write your report. This involves collating all you have done into a report of your investigation. Report Writing Requirements Title page Include details such as your name, subject, teacher’s name and title of your EEI Contents page Page showing a list of headings and associated page number Abstract A paragraph, that if read by itself, summarises the project in the least possible words. It should include the aim, procedure/principles/techniques involved and a very brief statement of your results and conclusions. Introduction Includes the Background Theory In your introduction you are to include current research that is relevant to your EEI. Provide in text references in your review, these will relate to your bibliography. Background Theory What theory is the experiment based upon? What theory relates to your experiment? What aspects of chemistry are incorporated in your experiment? What are the relevant types of analysis or calculations? Define the chemical terms related to your experiment? (e.g. titratable acidity, acid dissociation constant) Include diagrams and pictures where appropriate. Number and title all diagrams and pictures. Where possible, relate and link this background theory to your experiment. You may need to further describe and explain your experiment and what variables you are considering in your experiment. Use correct chemical terminology Use a range of resources – texts, books, journals, internet sites. Use in-text referencing for any information based on references, only your own original material need not be referenced e.g. (Ref 1) where “1” refers to the number of the reference in the bibliography; or use proper APA style referencing (Refer separate Handout). Direct Quotes need to be in quotation marks or italics, and need to be specifically referenced immediately after the quote. Do not use many direct quotes. You should be combining several sources and rewording in your own words. Keep a record of your references to add to your bibliography Consider in your introduction Present possible researchable questions which you have devised. State which open–ended research question you have selected for the investigation, and provide justification for your choice -Why do the experiment? What are the real-world or practical applications of this experiment or this area of chemistry? Is there mention of your experiment or similar experiment elsewhere You should describe the overall design plan for the experiment briefly at the end of your introduction to orientate the reader towards the goal of your experimental design (can include a sub-heading if you like) Hypothesis: This is the statement to be proven or disproved by your investigation. It is not a prediction on what you are expecting to happen as a result of experimentation, it should be a reason to do the experiment. Apparatus: What materials, equipment did you use? Make sure you include the size, quantity (e.g.. concentration) or amount of material you are using Include a scaled diagram or series of diagrams with labels. Include relevant digital photos Safety: The completed risk assessment for your EEI is to be included in your appendix. In the report you must make relevant statements concerning your particular safety issues and measures taken to avoid risk specific to your experiment. Procedure: A description of what you did in the practical tasks. Include sufficient detail so another scientist could replicate your method, without over-simplifying. Use past tense impersonal (non-personal). Avoid excessive repetition. Explain ‘step by step’ what was attempted in point or numbered form. A fully labelled diagram of the experimental set-up should be included. What quantitative and qualitative data was collected, give precise details of collection. Give details of any trials you carried out to establish your final procedure and details of modifications. (e.g. – use sub-headings such as: Part A procedure, Modifications to Part A, Part B procedure) Consider carefully how you have ensured that your experiment is a fair test, this must be clearly presented in your report. Include any other relevant diagrams