Discussion
What is the mass of oxygen in 250g of sulfuric acid?, What is the mass of oxygen in 250g of sulfuric acid?
General Chemistry
To support your work, use your course and text readings and also use outside sources. As in all assignments, cite your sources in your work and provide references for the citations in APA format.
Start reviewing and responding to the postings of your classmates as early in the week as possible. Respond to at least two of your classmates. Participate in the discussion by asking a question, providing a statement of clarification, providing a point of view with a rationale, challenging an aspect of the discussion, or indicating a relationship between two or more lines of reasoning in the discussion. Complete your participation for this assignment by Week 2, Day 7.
Discussion Question 1
Using the South University Online Library or the Internet, research elements and compounds. On the basis of your research, respond to the following:
What are the differences between physical and chemical properties in chemistry?
What are the differences between physical and chemical reactions in chemistry?
What are the characteristics that make elements different from compounds? Give two examples of each that exist in the human body and explain their function.
Discussion Question 2
Using the South University Online Library or the Internet, research any one element. On the basis of your research, provide:
What are isotopes and how are isotopes distinguished from one another?
How can isotopes be used in medicine (be specific)? Describe in detail one example of how an isotope is used therapeutically, and describe another example of how an isotope is used diagnostically in medicine.
Chemistry
Suppose that 7.3 mL of 3.7 M KOH(aq) is transferred to a 250 mL volumetric flask and diluted to the mark. It was found that 33.9 mL of this diluted solution solution was needed to reach the stoichiometric point in a titration of 7.3 mL of a phosphoric acid solution according to the reaction 3 KOH(aq) + H3PO4(aq) → K3PO4(aq) + 3 H2O(ℓ) Calculate the molarity of the solution. Answer in units of M.Suppose that 7.3 mL of 3.7 M KOH(aq) is transferred to a 250 mL volumetric flask and diluted to the mark. It was found that 33.9 mL of this diluted solution solution was needed to reach the stoichiometric point in a titration of 7.3 mL of a phosphoric acid solution according to the reaction 3 KOH(aq) + H3PO4(aq) → K3PO4(aq) + 3 H2O(ℓ) Calculate the molarity of the solution. Answer in units of M.
Excel graph
Question.1: In this assignment you need to plot graphs on excel for below?
1. Linearity
2. Accuracy
3. Precision
4. Range
5. Specificity
· All data or numbers required for graph and calculations are in attached excel file.
· You can check online and for above 5. And if needed please add Colum and rows in excel.
· For more information about (how do I get results )see below in reference section .
Linearity Testing Results
Work to be done: For triplicate readings (see attached excel sheet) from each operator at each standard ‘% NaCl’ concentration, plot a graph of the calculated potentiometer reading (y-axis) versus the corresponding standard NaCl solution concentration used (x-axis) in MS Excel and calculate the following from the graph:
- Correlation coefficient
- Slope of Regression Line
- Y-intercept
- Standard Deviation (SD)
- Relative Standard Deviation (RSD)
Matter and Energy
1- Describe Matter and mention all types of Matter.
2- Explain mixtures (homogeneous and heterogeneous)
3- Define and explain kinetic and potential energy, give examples on both
4. Use images
Matter and Energy
1- Describe Matter and mention all types of Matter.
2- Explain mixtures (homogeneous and heterogeneous)
3- Define and explain kinetic and potential energy, give examples on both
4. Use images
The Outline
Objective: Organize your thoughts and the main points of your research for your final presentation
Assignment Instructions: To help you complete Assignment 3: The Presentation, you will first submit an outline to organize your thoughts and main points. Your outline should be formatted a specific way and must contain the following elements as described below.
To prepare for this assignment, I recommend that you do the following:
Read these directions carefully.
Review the sample outline provided to you below.
The outline format: Your outline must be formatted as described and exemplified in the example attached. Please note that this format will be assessed in your grade:
Use an alphanumeric sequence
Sections should be indented and aligned
Follow the suggested order of the required elements
Use brief but detailed and descriptive phrases.
The required elements: Depending on the type of molecule/substance you have chosen you will address different sets of questions. Please see the category that responds to your selection. Your outline should contain the following elements in this order, and please note that some of these should be your personal observations. Also remember that your presentation (Assignment #3) should only be 10-15 slides, so you need to be concise and clear with your information.
Introduction
Molecule/substance Introduction
The common and IUPAC name of your molecule/substance. Please see this link to help with scientific names if needed: IUPAC Nomenclature Of Organic Chemistry: https://www.acdlabs.com/iupac/nomenclature/
Where you can observe your molecule/substance in society and/or in nature.
A brief discussion on why you chose your molecule/substance.
If possible, a picture and/or video of you safely observing your molecule/substance in the field. If you cannot safely observe it, please include a couple of images from the internet.
Body
Description
You must include a physical description. You can use your personal observations from photographs. If you cannot safely observe your molecule/substance, you must research.
Physical Characteristics (appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, etc.)
Chemical description: You will need to research the chemical properties of your compound/molecule)
Chemical Characteristics (stability in air or other environment, flammability, volatility, etc)
Discovery
a. Describe the initial discovery of your molecule. Who discovered the molecule, when, how, etc? Some compounds are part of a larger substance/plant. If this is the case, describe the isolation of your specific compound. The isolation refers to the initial time your molecule/substance was discovered from its raw materials, or isolated from its natural resources.
Usage and Benefit or Harm to Society
Where has your molecule/substance been used. Is it used regularly or is has it only been used on occasion? If your compound is one we ingest when eating, include information on foods it's commonly found in.
Write about the Benefit or Harm to Society Caused by your molecule/substance. Many compounds can be used as bioweapons or have both positive and negative impacts. Other compounds have had benefits as medicines or have caused harm as illicit narcotics. All of these are good ideas to start out thinking about, so I'd like you to discuss these impacts on society, the future, and in any way you can think they may be beneficial or harmful. Please see here for some hints on drug development.
Conclusion
This section should contain four to six points that sum up the main points from the body of the outline.
Start your conclusive section with one sentence summarizing some basic information about your chosen molecule/substance (common and IUPAC name and physical characteristics).
Continue with a brief summary (1-2 sentences) about the isolation and synthesis of the molecule/substance.
Include a brief summary (1-2 sentences) about the structure and function of your chosen molecule/substance.
Wrap up the conclusive section with a closing note that provides brief information about a unique fact and/or behavior of your chosen.
The Reference Section
This is not just the reference page; rather, referencing should occur throughout the outline as it will in your presentation. Therefore, your outline should include both a separate reference page containing a minimum of five sources listed in proper APA reference list format AND internal citations throughout the outline where appropriate. Please be sure to see the resources below for assistance regarding in-text citations and reference list formatting, and/or ask me if you have any additional questions.
Discussion
Discuss why most companies fail to realize the full potential of ERP implementations.
CH3OH (Methanol) VS CH3CH2OH (Ethanol)
1- Why does the human body resist ethanol and does not resist methanol?
2-Write the 9 structures and the 9 names of the Isomers of the Molecular Formula C4H8Br2
Report
The report must be based on information you gather and summarize. Do not cut and paste any information into the report
The report must have a Cover page that includes the Title and your name.
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 home heating, cooling (air conditioning), and electrical needs including installation costs, monthly bills, maintenance costs, and environmental concerns:
Solar panels and battery storage electrical systems.
Geothermal and heat pump (air, wells, and pipe systems) installations.
Electricity from the grid (normal commercial electricity).
Oil and gas furnaces
Summary paragraph stating your system preference and why you made your choice
List the sources of your information (web sites, books, etc
