Chemistry

Directions:The report must be based on information you gather and summarize. Do not cut and paste any information into the reportThe report must have a Cover page that includes the Title and your name and the name of the rare earth element you choose for your report.The report must be at least three full pages using double line spacing, 1 inch margins, Times New Roman font, and 12 pitch font size.The report must address each of these topics:List the rare earth elements.Discuss in general where are the minerals are found that contain the rare earth elements.Describe in general the products in which rare earth elements are used.Discuss in general any concerns involving rare earth elements such as environmental, political, safety, or availability.Choose one rare earth element and describe it fully (when discovered, where it is found, cost of the material, and where it is used.List the sources of your information (web sites, books, etc).

POLICY HIGHLIGHTSPharmaceutical Residues in FreshwaterHazards and Policy ResponsesPharmaceutical Residues in Freshwater Hazards and Policy Responses“A combination of promoting hygiene practices to reduce the incidence of infection and disease, encouraging sustainable pharmaceutical design andproduction, spreading awareness of responsible pharmaceutical use anddisposal, and improving environmental monitoring and risk assessmentof pharmaceuticals, are critical steps to achieving the dual sustainabledevelopment goals of improving health and protecting the environment.”Rodolfo LacyDirector of the Environment Directorate, OECDPO LICY H IGH LIGH TSOECD POLICY HIGHLIGHTS Pharmaceutical residues in freshwater: Hazards and policy responses . 1The OECD (2019) report Pharmaceutical Residues in Freshwater: Hazards and Policy Responses calls for a better understanding of the effects of pharmaceutical residues in the environment, greater international collaboration and accountability distribution, and policy actions to prevent and remedy emerging concerns. Laboratory and field tests show traces of oral contraceptives causing the feminisation of fish and amphibians, and residues of psychiatric drugs altering fish behaviour. Antimicrobial resistance, linked to the overuse of antibiotics, has rapidly escalated into a global health crisis.Unless adequate measures are taken to manage the risks, pharmaceutical residues will increasingly be released into the environment as ageing populations, advances in healthcare, and intensification of meat and fish production spur the demand for pharmaceuticals worldwide. The report outlines a collective, life-cycle approach to managing pharmaceuticals in the environment. A policy mix of source-directed, use-orientated and end-of-pipe measures, involving several policy sectors, can help to improve health and protect the environment.Pharmaceuticals are an important element of medical and veterinary practice, and their beneficial effects on human and animal health, food production and economic welfare are widely acknowledged. However, an area where we lack a common understanding is what happens when these pharmaceuticals are constantly discharged into the environment, through pharmaceutical manufacturing, consumption and excretion, and improper disposal of unused or expired products.

InstructionsAll fire investigators are required to possess the basic skills that are needed to determine the cause and origin of a fire. The textbook and Unit I Lesson discuss these skills.For this assignment, you will discuss fire investigation, the skills and knowledge required to conduct an official investigation, and the steps of the scientific method. Specifically, address the prompts below, and describe the process of how they are applied during fire investigations in your agency or community.Describe the basic elements of fire dynamics chemistry and combustion.Discuss the skills required to develop a cause and origin investigation.List and explain the seven steps of the scientific method.Your essay should be a minimum of two pages in length, not counting the title and reference pages. You may use the textbook, the Unit I Lesson, or outside sources to develop your essay. If any outside resources are used, they must be properly cited. Your essay, including all references, must be formatted in APA style.

Chemistry Due tomorrow at 10:00pm. If you are not good in chemistry don’t waist your time and my money. Thank you for your help.1) Your styrofoam cup weighs 6 grams. You put some water in it, and the partly filled cup now weighs 91 grams. The water’s temperature is 18°C. A large glass marble that weighs 35 grams is moved from boiling water and added to the water in the cup. Soon the water in the cup is 47°C. What is the relative head capacity of the glass (marble)?2) IF Heat Capacity is a function of the overall mass of the items moved from the boiling water into the cup, then design a simple experiment to show that this is the case.3) IF the case in #2 is true, then what would a graph of Rel. Heat Cap. vs Atomic Weight look like? (Either draw such a graph or describe it.)4) IF Heat Capacity were not a function of mass of the items moved from the boiling water into the cup, then what would a graph of Rel. Heat Cap versus Atomic Weight look like IF higher atomic weights had higher heat capacities? (Either draw such a graph or describe it.)

The order of the report sections should be title, abstract, introduction, experimental, results, sample calculations (if needed), discussion, conclusion, bibliography, and attachment (if needed). Formal reports must be typed including the results section and data tables. See Lab Report section at the end of each experiment in the lab manual for specific requirements.

We would like you to reflect on the material presented over the entire quarter and think about how the information has/can inform your own personal health as well as your career direction. Has anything changed since the midterm reflection? If so, please explain. Regardless of whether or not you are planning on pursuing a career related to healthcare, your reflection should discuss a minimum of three topics from class and how each topic broadened your understanding of pharmaceuticals, health care, and the role of the pharmacist in the community you live in.  You should also discuss how you will use this information in your day-to-day life and to what extent the information discussed so far has impacted your thoughts about your career.  For more information on Pharmacy Reflection read this: https://en.wikipedia.org/wiki/International_Pharmaceutical_Students%27_Federation#Pharmacy_Education_%28PE%29

Lab 13, Experiment 12. Titration of Hydrogen Peroxide Lab manual pages: 109-118 Pre-lab questions: page 111 – 112 Post-lab questions: 117 – 118 https://www.youtube.com/watch?v=ag2JGq5Omzo https://youtu.be/ag2JGq5Omzo https://youtu.be/Irs0-YrE7mA For more information on Hydrogen Peroxide read this: https://en.wikipedia.org/wiki/Hydrogen_Peroxide

Homework Case: Detected increase in incidence of rust afflicting either or both the vehicles produced by our automotive brand name. Said increase is defined as that which occurs before the guarantee period against rust expires, but also the period shortly after the expiry of the guarantee date. The term “shortly after” is given an arbitrary value of 18 months. Solution pathway:  1- You need to name your result or effect, the fish head, correctly. 2- Consider using the manufacturing categories (Slide 16) in Ishikawa Diagrams as a start. You may also choose your own categories if applicable, or you can augment the manufacturing categories with your own categories. 3- You determine your own categories as a result of affinity analysis and brainstorming sessions (Slides 18-20). 4- Come up with the possible categories for causes. Be careful when naming your causes, always making them measurable and non-descriptive. (Slides 22, 23) 5- See where the use of another tool like a statistical graph or chart can be useful. (Slide 24) 6- For at least one of the causes develop it into a new fishbone diagram. (Slides 33, 34) For more information on Rust  read this: https://en.wikipedia.org/wiki/Rust

Choose the topic for your course project.Familiarize yourself with PowerPoint with Audio Narration, which you will be using for your final presentation.Upload a “mini-presentation” introducing the molecule of your choice and explaining why you chose this topic for the course project.

Part I: pH change of an unbuffered solution 1.Load http://chemcollective.org/vlab/1022.Add a 250 mL beaker to your workspacefrom the stockroom.3.Add 10 mL of the protein solution.  (To add something to a beaker drag the solution on top of it until the prompt appears.)Then add 90 ml of water to the solution.Record the pH:_____________________(you find the pH by clicking on the beaker)4.To the same beaker under strong acids add 10 mL  0.10 M HClfrom the stockroom strong acid solutions. Record the pH: _____________________ (you find the pH by clicking on the beaker)5.What is the change in pH?_______________________________Part II: pH change of a buffered solution1.You have available the following:100.0mL of 1.0 MH2CO3 (weak acid; pKa= 6.4)100.0mL of 1.0 MNaHCO3(conjugatebase of H2CO3; but also a weak acidpKa=10.3)100.0 mL of Grey Goose Vodka100.0mL of 1.0 MNa2CO3(conjugate base of HCO3-)First, explain whichof the solutions aboveyou would useto make a 1 M Carbonate buffer at pH=6.0Next describe how much of each solution you would useto make a 1 M Carbonate buffer at pH=6.0and indicate the total volume.  Show any calculations2.Reload the Virtual lab page and create your buffer solution above.  Was your math correct? Record the pH:______________________ Acceptable ranges are +/-0.05 pH units3.Add another beaker to your workspace and add 10 mL of the protein solution. Then add 90 ml of buffer to the solution.Record the pH___________________4.To the same beaker add 10 mL  0.10 M HClfrom the stockroom strong acid solutions. Record the pH: _____________________ (you find the pH by clicking on the beaker)5.What is the change in pH?_______________________________Post lab questions1.In Part II, if instead of making a 1.00M carbonate solution, you made 0.100 M carbonate solution, how would this effect the change in pHwhen you added 0.1 M HCl to the protein buffer solution? What would be the new pH?  Show your calculations and also use the program. Compare the two results.2.If you wanted to make a buffer at pH=8.  Would carbonate be a suitable buffer?  Please explain why or why not?3.Why is it important thatbiochemistry solutions are in buffered solutions?