Category: Chemistry

  • Worksheet

    Instructions for discussion post:

    In this week’s module, we examined two diseases that result from the reduction in or lack of a functioning enzyme.

    Using

    , search for and read a research paper published on either Tay-Sachs disease or Phenylketonuria in the last 10 years. Post the title of the paper, year of publication, a link to the abstract, and a 1-2 paragraph summary of the research findings.

    (DONE ON A WORD DOCUMENT)

    2 worksheets are in the downloads below please complete.

  • Fighting Cancer with Proton Therapy

    write a reach paper like an essay with this subject Fighting Cancer with Proton Therapy
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    Requirements:

  • The Enthalpy of Sublimation and Lattice Enthalpy of Solid Ar…

    Please make edits to my draft. I think I am missing a few items, such as citations. I have included the articles I used along with my draft. Please make any changes you see fit, and please ensure my calculations and tables match my raw data.

    Attached Files (PDF/DOCX): MEASUR1.PDF, NIST Chemistry WebBook Argon.pdf, THESUB1.PDF, VAPORP1.PDF, Thermo-Kinetics Exp Theory.pdf, Experiment 1 Enthalpy Argon.pdf

    Note: Content extraction from these files is restricted, please review them manually.

  • Periodic table

    • How do we know that air is not a single substance?
    • Metals have many similar properties, but not all properties are shared by all metals. Why is it useful to group them as metals?
    • Why is it important that the Periodic Table is structured as a table, rather than a list of elements?
    • How is the Periodic Table important for all of science and not just chemistry?

    Requirements: explicit

  • Heavy Metal Poisoning and Atomic Absorption Spectroscopy

    Laboratory Report for my Forensic Chemistry class. I need an 95% and above to maintain my current A grade. I’ve attached all of the information necessary and the submission format.

    Attached Files (PDF/DOCX): Lab_3_Heavy_Metal_Poisoning_Submission_Template_1_ – Copy.docx, Lab_3_Poison_BLANK_1_ – Copy.pdf

    Note: Content extraction from these files is restricted, please review them manually.

  • Atoms and molecules questions

    Very Short Answer Questions

    1. What is an atom?
    2. What is a molecule?
    3. Define atomic mass.
    4. Define molecular mass.
    5. What is a chemical formula?
    6. What is an ion?
    7. What is valency?
    8. What is the formula of water?
    9. What is the atomicity of oxygen?
    10. Name the smallest particle of an element.

    Short Answer Questions

    1. Differentiate between atom and molecule.
    2. What are polyatomic ions? Give two examples.
    3. Explain the law of conservation of mass.
    4. State the law of constant proportions.
    5. What is meant by atomicity? Give examples.
    6. Write the chemical formula of:
      • Sodium chloride
      • Calcium oxide
      • Ammonia
      • Carbon dioxide
    7. How do you calculate molecular mass? Explain with an example.
    8. What are isotopes?

    Long Answer Questions

    1. Explain Daltons atomic theory.
    2. Describe the laws of chemical combination.
    3. How are chemical formulae written? Explain with examples.
    4. Calculate the molecular mass of:
      • HSO
      • CaCO
      • NaOH
    5. Explain the concept of mole.

    Requirements:

  • Junction as an ultra linear calculable thermometer

    The mode of operation of the p – n junction is described, which leads to an output voltage linearly dependent on temperature, regardless of the geometry of the device or semiconductor material and is determined only by fundamental physical constants and current.

  • Ionic compounds and freezing point depression

    Chemistry assignment. The instructions are attached below. The reading material link is provided in the attached document as well.

    Attached Files (PDF/DOCX): Untitled document.docx

    Note: Content extraction from these files is restricted, please review them manually.