Categories
Chemistry

Make sure sources of error are clear.

Title Page
Abstract (5 or more sentences): Add the purpose of the experiment.
Introduction (3-4 full paragraphs)
Materials & Methods: there needs to be a space between a number and its units. Avoid writing “we” but still be in present tense. Cite the lab handout in this section.
Results: Summarize the results in a table in addition to the text. Make sure sources of error are clear.
Discussion (2 paragraphs)
References
Any charts, graphs or photos used please add text that talks about what is going on.

Categories
Chemistry

Provide examples of how your powers affect the world, environment, animals, or other people in a larger world view.

You have been learning about nuclear chemistry in class. Using your knowledge about nuclear chemistry, you will create a superhero with powers that were acquired due to exposure to nuclear material. This is an individual project; academic dishonesty will result in all the consequences specified in the student honor code. Your project is DUE: THURSDAY, OCTOBER 6TH. You may earn UP TO 10 points in the major grade category for the 1st 9-week grading period. This must be turned in on Google Classroom and will be subject to a PLAGIARISM check.

10 points – Write a SUPERHERO story that contains the following items.
Location – 1 point
Where did the exposure to nuclear material take place?
Radioactive Decay Equation – 2 points
Choose 2 types of radioactive decay (alpha, beta, or gamma) that caused your transformation into a superhero.
Show both (2) equations for the radioactive decay you chose above.
Powers – 1 point
State the power or powers acquired. Must be original powers…. things we have not seen in already existing superheroes!
Fission vs. Fusion – 1 point
Do your powers come from a fission or fusion reaction?
Show the fission or fusion equation that causes your powers.
How Powers Affect World – 1 point
Provide examples of how your powers affect the world, environment, animals, or other people in a larger world view.
Half-life (conclusion) – 2 points
State how long your powers can last due to half-life of radioactive material. Could it cause you to die eventually, live longer, or stay young?
Story Elements – 2 points
Story has logical flow and is written in complete sentences.
Story is at least 1 page, typed (may be double-spaced).

Categories
Chemistry

Using the south university online library or the internet, research haloalkanes.

What are the differences between alkanes, alkenes and alkynes?
What are the differences between cis- and trans-isomers of alkenes?
How are cis-trans isomers used for night vision?
Discussion Question 2
Using the South University Online Library or the Internet, research haloalkanes. Based on your research, respond to the following:
What is a haloalkane? Identify one of them.
How does the haloalkane you identified function as an anesthetic? Describe in detail.

Categories
Chemistry

B) which complexes are involved in respirasome formation?

a) What is meant by a respirasome?
b) Which complexes are involved in respirasome formation?
c) What is the involvement of cardiolipin in respirosome function?
d) What are the benefits of a respirasome?
APA style with references and add figures – do not use first person
Do not use a cover page

Categories
Chemistry

C) sf4

1. Draw the correct Lewis Structures for each molecule on the list below and name each molecule following the rules for naming. You can print and fill this table to complete the answers for this question or you can copy the table in a piece of paper and fill in your answers. Make sure to also include in your paper: the total number of valence electrons for each molecule, how many bonds and lone pairs (non bonding) are around the central atom. Once you have completed the Lewis structures and the name of the four molecules, you can take a picture of your work and submit as the answer for this question. You can see an example here.
A) CH4
B) NH3
C) SF4
D) PCl3
2.Shape of a Molecule
To answer this question, you can refer to the Electron and Molecular Geometry Chart.
Use the Lewis structures from question 1 to predict the shape of the four molecules listed below
A) CH4
B) NH3
C) SF4
D) PCl3
Add the electron geometry and the molecular geometry to the paper containing your Lewis structures (question 1). Take pictures (combine them in one file if you have more than one picture) and submit as the answer for this question.You can see an example here.

3. To answer this question, you will need: toothpicks and play doh (at least two different colors) to create the molecular models. Start by creating small balls (about half an inch each one) of play doh of at least two different colors.
Using toothpicks for bonds, one tenth (1/10) of a toothpick for lone pairs and the play doh, create the molecular models of the following compounds:
A) CH4
B) NH3
C) SF4
D) PCl3
Your molecular models need to show the central atom with any lone pairs present on the structure and the bonds connecting the terminal atoms to the central atom. You don’t need to show the lone pairs on terminal atoms. Your models need to reflect the correct molecular geometry for the molecule. You can look at this presentation to guide you on how far or close should the bonds/lone pairs be.
Take pictures of your structures and submit all of them in the same file as the answer for this question. You can find an example here.

Categories
Chemistry

Use these questions as subheadings followed by your answers.

Before attempting the homework assignment, you are encouraged to view the Unit III Handout for additional help. The knowledge checks in the handout are designed to provide practice on math-heavy portions of your quizzes and homework assignments.
Solve the following problems, showing your work for all steps involved.
Write the balanced, nuclear equation for the positron emission from the Thallium-201 radioisotope.
What are the four common types of radioactive decay? Detail the differences between them. Include a detailed comparison, including penetrating power and energy. Include a balanced, nuclear equation with each as well.
What are the two types of nuclear reactions? Give an example of a balanced nuclear reaction for each type.
Use these questions as subheadings followed by your answers.
the unit 3 handout: copy and paste
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Categories
Chemistry

Post an example of a reaction and describe what type it is and why.

The web resource Types of Chemical Reactions (link in prompt attachment) from last week’s module gave a graphical descriiption of the different types of reactions explored to this point. Think about the compound that you chose for Milestone One. Which of the five different types of reactions is your compound involved in? Include information about heats of reaction and comment on whether the reaction is endothermic or exothermic and how the magnitude of this energy change compares with other reactions. Post an example of a reaction and describe what type it is and why.
Chosen compound: Xanthan Gum

Categories
Chemistry

Apa style with references and figures

Discuss importance of substrate channeling and metabolon formation in the TCA.
a) What is a metabolon?
b) What is meant by substrate channeling?
c) What is the advantage of substrate channeling through metabolon?
d) How is this topic relevant for the TCA?
APA style with references and figures

Categories
Chemistry

Results and discussion (2 or more paragraphs)

Abstract (1 paragraph)
Intro (1-3 paragraphs)
Results and Discussion (2 or more paragraphs)
Conclusion (1 paragraph)
Experimental section (1 or more paragraphs): write the steps in paragraph form
References
Use “we” and the present tense when writing.
When using pictures, graphs or figures explain what is happening in the paragraph before them.

Categories
Chemistry

A certain anesthetic contains 64.9 percent carbon, 13.5 percent hydrogen, and 21.6 percent oxygen by mass.

Written Assignment 6: Gases
Answer all assigned questions and problems, and show all work.
A gas occupying a volume of 725 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume? (5 points)
The volume of a gas is 5.80 L, measured at 1.00 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.65 L? (The temperature remains constant.) (5 points)
Why is the density of a gas much lower than that of a liquid or solid under atmospheric conditions? What units are normally used to express the density of gases? (5 points)
A sample of nitrogen gas kept in a container of volume 2.3 L and at a temperature of 32°C exerts a pressure 4.7 atm. Calculate the number of moles of gas present. (8 points)

What volume will 5.6 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 128°C and 9.4 atm? (8 points)
A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are –23°C and 3.00 × 10–3 atm, respectively. Calculate the final volume of the balloon. (8 points)
A 2.10-L vessel contains 4.65 g of a gas at 1.00 atm and 27.0°C. (a) Calculate the density of the gas in grams per liter. (b) What is the molar mass of the gas? (10 points)
A certain anesthetic contains 64.9 percent carbon, 13.5 percent hydrogen, and 21.6 percent oxygen by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compound weighs 6.90 g. What is the molecular formula of the compound? (10 points)
What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of gaseous HCl? What is the volume and identity of the gas remaining, measured at 14.0°C and 752 mmHg? (8 points)
NH3(g) + HCl(g) → NH4Cl

A mixture of gases contains 0.31 mol CH4, 0.25 mol C2H6, and 0.29 mol C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases. (8 points)

Propane (C3H8) burns in oxygen to produce carbon dioxide gas and water vapor. (a) Write a balanced equation for this reaction. (b) Calculate the number of liters of carbon dioxide measured at STP that could be produced from 7.45 g of propane. (10 points)

A 10.0 g piece of pure aluminum is placed in 75.0 mL of 0.54 M hydrochloric acid at STP condition. They react as follows:
2Al + 6HCl → 3H2(g) + 2AlCl3
Calculate the following:
Volume, in liters, of hydrogen gas. (5 points)
Molarity of Al+3. (Assume 75.0 mL solution.) (5 points)
Molarity of Cl–. (Assume 75.0 mL solution.) (5 points)