Category: Chemistry

Part 1: View the video “Ghost in the Genes” by using the following link: Ghost in the Genes. Write an essay that answers the questions listed below. 
What is epigenetics?
What is the relationship between DNA and epigenetics?
Why is epigenetics important?
Have you heard of epigenetics before watching this video?
What is your personal reaction to the video?
This assignment must meet the following criteria:
Minimum word count: 400 words
APA format
Works Cited page
Part 2: Provide feedback to me if this assisted in giving you a better understanding of epigenetics, and what could be done differently (three paragraph maximum).
Once you’ve completed your paper, you may turn it in to Tutor.com or a Broward College Tutoring writing service to provide feedback, revise (if needed), and then submit for final grading.

Your
pre-sampling and post-sampling pump calibration using a primary standard
are both 0.05 L/min. You collect a personal sample on an employee working
in the operation. The sample is collected for 460 minutes. Calculate the
sample volume.
The laboratory
reports that the front section of the sample contains 4,500 µg of methyl
n-amyl ketone and the back section contains 100 µg of methyl n-amyl
ketone. Neither the front nor back sections of the field blank you
supplied contain any detectable levels of methyl n-amyl ketone. Calculate
the concentration of the sample in µg/L and mg/m³. Convert the result to
ppm (MW for methyl n-amyl ketone = 114.2). Note: Use the ideal gas
constant of 24.45.
You then
reference OSHA’s Table Z-1 and find that the 8-hour TWA PEL for methyl
n-amyl ketone is 100 ppm. You also look up the ACGIH TLV for methyl n-amyl
ketone and find that the TLV is 50 ppm as an 8-hour TWA exposure. Discuss
how the results of the personal sample you collected compare to the OSHA
PEL and the ACGIH TLV.
Discuss whether
you would recommend comparing the results of your sampling to the OSHA PEL
or the ACGIH TLV. Include your rationale for the choice.
Show
all your work for the calculations for questions 1 and 2. For
questions 3 and 4 should be at least 70 words in length explanation.
Cite the NIOSH
document using APA Style.

Check the pdf given below.
Create a video with a voice over or just with pictures with captions/music or
of you speaking.

For this assignment, find 2 real-life examples of how 2 different methods of filtering that can be used in a chemistry lab are used in the real world. When you find them, your assignment is to write 3 pages (3rd page can be citations only, front of page only is OK) with font

Please read the lab background and procedure and write a pre-Lab Note. I will attach the questions you have to answer for the pre-lab.

Your paper should be 1-2 pages in length and conform to APA guidelines. Items that should be included, at a minimum, are a title page, an introduction, a body that answers the questions posed in the problem, and a conclusion paragraph that addresses your findings and what you have determined from the data and your analysis. As with all written assignments, you should have in-text citations and a reference page too. Please include any tables of calculations, calculated values, and graphs associated with this problem in the body of your assignment response. Your reference section should include at least one peer-reviewed, scholarly reference.

write, design, and produce a four (no more, no less) page illustrated text describing the Haber Bosch process.
You will include the following sections:
a description of the Haber-Bosch process and its importance, 
an explanation of the process’s chemical reaction, 
mathematical representations to support the claim that atoms, and therefore mass, are conserved during the chemical reaction, 
a model such as a diagram or graph to show the changes in energies,
an explanation using Le Chatelier’s Principle of the influence of temperature and concentration changes on the reaction,
conditions that would produce increased amounts of products at equilibrium.
Use consistent citing and referencing for all your sources.
Content matters the most, but an attractive layout helps to communicate effectively.
the goal is to describe and explain the control of a Haber-Bosch ammonia plant, and
Construct an explanation for the outcome of this simple chemical reaction (the Haber-Bosch process) based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during the chemical reaction.
Develop a graphical model to illustrate that the release or absorption of energy from the chemical reaction system depends upon the changes in total bond energy.
Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which the reaction occurs using Le Chatelier’s Principle.
Refine the design of this chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.
please use a simulated Haber-Bosch ammonia plant to reach these goals

Before you begin, read the Determination of Ideal Gas Law Constant Lab Manual to prepare for the activity.
Gather everything you need for the activity listed in the Materials section before you start.
Check the time estimates in the Time Requirements section. Set aside the time you need to ensure you have enough time to perform the activity.
Perform the activity, following the instructions carefully.
Complete the Determination of Ideal Gas Law Constant Lab Report.
Upload the Lab Report when finished.
Overview
For each of the assigned labs, follow the directions accurately and safely. Throughout the lab, collect and record data accurately. Analysis of the data should include the proper calculations. This must include the correct use of units, scientific notation, precision, and analysis of error. You must base your interpretation of the results on the theories presented in the lab and collected data.
Directions
Specifically, you must address the following rubric criteria:
Conduct Experiments: Conduct and document experiments using logical steps. Select and operate appropriate equipment and instruments to perform the experiment and follow laboratory safety procedures. Documentation of methods and preparation includes correctly labeled photographs of the experiment.
Record, Analyze, and Interpret Data: Accurately record and analyze results from experiments in an organized and appropriate manner and include all equations used, calculations, and appropriate units.
Communicate Scientific Principles: Accurately represent results in an organized and appropriate manner and include all data tables, images, models and graphs with proper titles, labels, and units.
Post-Lab Questions: Clearly and accurately address post-lab questions and provide support with direct evidence from results.
What to Submit
Submit the completed Lab Report template linked in the module. Ensure the lab report is typed and contains all photos, data, analysis, and responses to the associated lab questions. Show your work for all calculations. All Lab Reports must be submitted as a Microsoft Word document.

Surfactants are an important class of compounds. As described in the textbook, surfactants are most commonly used in soap and detergent. They are also used in many other situations where hydrophobic and hydrophilic ingredients must be combined, but they are often called emulsifiers in these cases. Examples can be found in many foods and personal care products.
Examine a product of your choice (other than a soap or detergent) that contains a surfactant/emulsifier. Include the name of the surfactant/emulsifier, a brief description of the molecular features that make it a surfactant, and two of the other product ingredients that it is helping to stabilize.
Submit your assignment here. Make sure you’ve included all the required elements by reviewing the guidelines and rubric.
CHM 101 Emulsifiers Journal Guidelines and Rubric
This assignment provides an opportunity to connect the readings and professional practices to your own personal experiences. In addition, this is an opportunity to articulate thoughts and views on a particular scientific topic. In doing this, it is important to present these thoughts and views in a coherent way that is supported by outside resources and that recognizes the scientific and political context.
Surfactants are an important class of compounds. As described in the textbook, surfactants are most commonly used in soap and detergent. They are also used in many other situations where hydrophobic and hydrophilic ingredients must be combined, but they are often called emulsifiers in these cases. Examples can be found in many foods and personal care products.
Examine a product of your choice (other than a soap or detergent) that contains a surfactant/emulsifier. Include the name of the surfactant/emulsifier, a brief description of the molecular features that make it a surfactant, and two of the other product ingredients that it is helping to stabilize.
What to Submit
Submit assignment as a Word document with double spacing, 12-point Times New Roman font, and one-inch margins. Your journal assignment should be about 500 to 1,000 words in length. Citations should be formatted according to APA style.

For this coursework, you are asked to read the paper “More is different”, from P.W.
Anderson, published in Science in 1972. After doing so, you will write a short essay (ca. 1500 words) to demonstrate your understanding of some of the qualitative skills covered in the module and discussed in this module. Specifically, you are expected to cover the topics listed below and connect them with the manuscriipt from P.W.
Anderson:
• Complex systems and its main features (20 points)
• Examples of complex natural systems (10 points)
• Why the reductionist approach is not sufficient to describe complex systems
(20 points)
• Phase transitions (15 points)
• Emergent properties (15 points)
Why it is useful to study the dynamics of complex natural systems in the context of Grand Challenges (20 points)