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Identification of unknown drugs by Thin layer chromatography, infra red spectroscopy and melting point. The word count includes tables and references. do not use websites as references.
examine factors that affect water quality. You will also study some of the reactions that make polluted water safe and fit to drink.
Create a step-by-step process for creating a standard solution of your choosing from solid(BY WEIGHT) Sodium Hydroxide (NaOH), the concentration of this solution must not be greater than 2 M.
Body Mass Index
Part 2 (150 points) consists of working with Excel to test specific hypotheses concerning BMI values in order to answer the research questions below and prepare your report. Instructions for the meaning of these statistical tests, how to set them up, and how to use Excel are contained in the lecture videos in the Module 6 Lesson. SEPARATELY UPLOAD A WORD DOCUMENT AND AN UPDATED EXCEL SPREADSHEET (INCLUDING GRAPHS) IN THE MODULE 6 ASSIGNMENT.
BODY MASS INDEX RESEARCH QUESTIONS
1. Is there any difference between the mean BMI of males and females? [DO A T-TEST ON THE DATA SORTED BY GENDER]
2. Is there any correlation (positive or negative) between BMI and age?
(a) For males, is there any correlation between BMI and age?
(b) For females, is there any correlation between BMI and age?
[MAKE TWO SCATTERPLOTS OF THE DATA, ADD A TRENDLINE (with “display equation on chart” and “display R-squared value on chart”) AND DO TWO CORRELATION TESTS ON THE DATA SORTED BY GENDER]
3. Are there any differences in the percentage of males and the percentage of females in each of the four BMI categories? [MAKE A BAR GRAPH OF THE NUMBER OF MALES AND FEMALES IN EACH CATEGORY AND MAKE A VISUAL COMPARISON].
Compare your answer to the conclusion for Question 1 and comment if they match or if they contradict each other.
4. Is there any correlation between height and weight?
(a) For males, is there a correlation between height and weight?
(b) For females, is there a correlation between height and weight?
[MAKE TWO SCATTERPLOTS OF THE DATA, ADD A TRENDLINE (with “display equation on chart” and “display R-squared value on chart”) AND DO TWO CORRELATION TESTS]
Deliverables (TO SUBMIT AS PART 2 OF THE REPORT, WORD + EXCEL FILES)
1. Your Excel spreadsheet (that you did, not somebody else’s) with data sorts, graphs, and all statistical outputs;
2. A formal listing of the statistical tests, including all five parts, for Research Questions 1, 2, and 4 above;
3. A half-page to one-page, double-spaced description of the meaning of BMI (including why it is defined as weight/height2), how it relates to disease, and if it is a useful measure of obesity based on the opinions of people you read online. DO NOT PLAGIARIZE, AND CITE THE SOURCES YOU USED USING MLA OR APA STYLES YOU LEARNED ABOUT IN ENGLISH CLASS.
4. A one-page, double-spaced typed summary description (using words) of the results for your tests with
answers to the four research questions.
INCLUDE COMMENTS ON WHY THESE DO OR DO NOT MAKE ANY SENSE.
THE BUFFER IN LEMONADE
In this experiment, you will titrate the two solutions (buffered and unbuffered solution) of citric
acid with 0.10 M NaOH , monitoring pH using pH Sensor and plot titration curves as pH versus
volume of the titrant NaOH.
Discussion hints
1. Determine which solution, buffered or unbuffered reacted with more moles of NaOH when the
equivalence point was reached?
2. Observe the graph of each titration. How does the titration curve of the buffered lemonade
compare to the curve of the unbuffered citric acid solution?
3. What is the formula of citric acid and the sodium salt of citric acid?
What are the Effects of Different Radicals of different mass on Bond Angles in Essential Amino Acids
The essay will be part of my annual assessment. The essay is written by me (however, I am currently sick and cannot finalise it).
The main criteria of the essay:
1. There is evidence of personal input and initiative in the designing, implementation or presentation of the investigation.
2. The background information provided for the investigation is entirely appropriate and relevant and enhances the understanding of the context of the investigation.
3. The report includes sufficient relevant quantitative and qualitative raw data that could support a detailed and valid conclusion to the research question.
Appropriate and sufficient data processing is carried out with the accuracy required to enable a conclusion to the research question to be drawn that is fully consistent with the experimental data.
The report shows evidence of full and appropriate consideration of the impact of measurement uncertainty on the analysis.
4. A detailed conclusion is described and justified which is entirely relevant to the research question and fully supported by the data presented.
A conclusion is correctly described and justified through relevant comparison to the accepted scientific context
5. The presentation of the investigation is clear. Any errors do not hamper understanding of the focus, process and outcomes.
The report is well structured and clear: the necessary information on focus, process and outcomes is present and presented in a coherent way.
Purification of an organic solid by recrystallization
Objective: To purify a sample of benzoic acid contaminated with sand by recrystallization from water
Crystalline state of matter is a highly organized state of matter. To form crystals, the molecules of the substance must arrange themselves in an orderly manner. Any impurity present in the sample of the substance will prevent the orderly organization of molecules of the substance. Thus, a sample obtained in a crystalline form is likely to be a pure substance. A sample of an impure solid substance can be purified by recrystallization.
Recrystallization Method:
Identify the impurity in the sample and the approximate degree of contamination
Identify a solvent suitable for purifying the impure sample of benzoic acid by crystallization. [An ideal solvent for recrystallization for a substance is a solvent that will (1) partially dissolve the substance at room temperature, and (2) completely dissolve the substance while hot . In addition, the hot solution of the substance in the solvent, when cooled will allow the substance to form crystalline solid.]
Separate the impurity by mixing the impure sample with minimum amount of the hot solvent and filtering off the insoluble impurity by gravity filtration.
Allow the filtrate to cool slowly to room temperature or below, for the pure substance to crystallize.
Isolate the recrystallized benzoic acid by vacuum filtration, dry the residue and determine the amount of sample recovered. Calculate the % recovery of benzoic acid
Determine the purity of the recrystallized benzoic acid by determining its melting point and comparing this melting point to the value reported in literature.
Drug discovery
Select one of these drugs below,draw the chemical structures, and indicate the binding site/s of your chosen molecules. These are some you can pick one from (available from the recommended textbook):
Ace inhibitors
Artemisinin and related antimalarial drugs
Oxamniquine
Thymidylate synthase
Anti-inflammatory agents
Antidepressant agents
Once you selected a drug (from the list above)
explain the stages of drug discovery, design and
development (only on your
chosen drug-one of the above list and not in general)
Show the drug binding to its receptor/protein (receptor/proteins can be downloaded from protein data bank) using one of the recommended drug discovery software.
Perform Phvsical properties on your selected drug using the ADMETIab 2.0 website (ADMETIab 2.0 )
A 60% of the total mark is allocated for using the recommended chemistry software, and the rest (40%) will include the write-up and the recent research on your drug of choice.
You should draw all your chemical structures using chemistry software, and no marks will be given for hand drawing.
Harvard style is your reference style. Make sure that all work is correctly cited and referenced. You need to use at least five references.
Statement of purpose of UCLA
Have finished my draft of my SOP,edit to fit the UCLA program requirement. Respond to the following. Your statement can be up to 500 words in length. You do not need to answer every question; focus on the elements that you feel are most relevant to your candidacy.
What is your purpose in applying for graduate study in your specified degree program? Describe your area(s) of interest, including any subfield(s) or interdisciplinary interests.
What experiences have prepared you for advanced study or research in this degree program? What relevant skills have you gained from these experiences? Have your experiences led to specific or tangible outcomes that would support your potential to contribute to this field (examples: performances, publications, presentations, awards or recognitions)?
What additional information about your past experience may aid the selection committee in evaluating your preparation and aptitude for graduate study at UCLA? For example, you may wish to describe research, employment, teaching, service, artistic or international experiences through which you have developed skills in leadership, communication, project management, teamwork, or other areas.
Why is the UCLA graduate program to which you are applying is the best place for you to pursue your academic goals? If you are applying for a research master’s or doctoral program, we encourage you to indicate specific research interests and potential faculty mentors.
What are your plans for your career after earning this degree?
Light Project Report
Describe personal and historical observations of the phenomenon studied,state a problem or ask a question about those observations, form a hypothesis to be tested, briefly describe the demonstration used to collect the data, present the data (using tables and graphs), analyze and interpret the results, and draw a conclusion. At the end of each part, summarize your conclusions, discuss how the demonstrations could be improved, and provide recommendations for future studies. Use any resources that are appropriate, including those already supplied. Just be sure NOT TO PLAGIARIZE and cite resources used using conventional English styles (e.g. MLA or APA style) and list them in the final section. FEEL FREE TO SEEK ADVICE AND TO “PICK MY
BRAIN” WHEN YOU NEED TO.
Part 1. Colors of White Light [100 POINTS] – In this section you will describe how white light is a mixture of individual colors (including the three primary colors of light), how wavelength relates to the color of light, spectral power distribution (SPD) and how it was measured, and the meaning of color temperature (including its application in the lighting industry and photography). Using the data collected, including the SPD graphs, describe any trends shown by the data, and especially how color temperature and SPD are related. Look at where the peak wavelengths are on the SPDs and compare them to the color temperature for that light source. Briefly summarize the major findings and conclusions from Part 1, and provide recommendations for future studies. List references (two or three is sufficient) in standard format (MLA or APA).