Category: Essays

Separation and Qualitative Analysis of Cations

Posted on | by Brian Leakey

In this experiment, you will use analyze the characteristic reactions that a variety of cations undergo. You will then devise a qualitative analysis scheme to analyze a solution that contains a variety of these cations in one solution. You will then use this analysis to determine the identity of an unknown cation solution.

Introduction

When a chemist conducts a qualitative analysis, the primary goal is to identify the substances that are present in a mixture. It is important to separate substances from each other in a mixture, so that a confirming test can be as definitive as possible. After a thorough qualitative analysis investigation, it would be nice to say, for example, that potassium is present instead of saying merely that an alkali metal is present.
Conducting a qualitative analysis, or “qual scheme” as it is sometimes nicknamed, is a methodical process that requires great care. A qual scheme can be used to identify a wide variety of substances; in this experiment, you will focus on ions. In this unit you have been learning about solubility equilibria and complex-ion equilibria, both of which play crucial roles in the separations and identifications that are part of a qual scheme. You will see some very interesting things during this experiment, things that will help you understand more about the nature of cations and anions.
Reaction with HCl

A common step in qualitative analysis schemes is to react with chlorides. Usually only a few cations, Pb2+, Hg22+, and Ag+, will react to form precipitates with chloride ions. It is useful to use reagants that only react with a few cations to more easily narrow down the identity of some cations.

In this lab you will be testing Pb2+ and Ag+. The way you can determine the difference between the two ions is by adding NH3 to the precipitate. AgCl will dissolve in a basic solution but PbCl2 will not.

Reaction with NH3

Ammonia is a unique reagent because it will show a variety of products. Sometimes a precipitate occurs with a characteristic color, but in other cases a complex ion is formed with a very vibrant color change. Therefore it is useful to record all changes that you observe.

Does money really make the world go ’round?

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Discuss the following statements: Without money, everything would become more expensive. In Discussion: Does money really make the world go ’round?

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Discuss the following statements: Without money, everything would become more expensive. In countries such as Zimbabwe, which had problems with high inflation, the increased use of another country’s currency (such as the U.S. dollar or South African rand) became common. Why do you suppose this occurred?
Make sure you use the readings to support your discussion and don’t forget to cite and list your sources.
In each discussion forum, students are expected to respond to the prompt by providing an informed, rigorous, and professional post. The initial post should be at least 150 words. In addition, students are required to respond at least 2 times to their classmates’ posts in a similarly informed, rigorous, and professional manner. Peer

Definition of service learning and your role in the community

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In this final reflection paper, students are responsible for:
1. How were your personal learning objectives accomplished?
2. How did the course activities connect with the assignments done throughout the semester? Does it affirm, challenge, illustrate the concepts and strategies of community health nursing?
3. What is your personal definition of service learning and your role in the community?
4. What is your personal definition of behavioral change? Do you feel the service you provided as a community nurse brings some form of behavioral change and why?
5. Please post a photograph/picture along with a summary describing how the photo/picture relates to your clinical experience and learning. Focus on metaphors, feelings, and how the experience reminded you of a prior experience.

 

Definition of service learning and your role in the community

Posted on | by

 

In this final reflection paper, students are responsible for:
1. How were your personal learning objectives accomplished?
2. How did the course activities connect with the assignments done throughout the semester? Does it affirm, challenge, illustrate the concepts and strategies of community health nursing?
3. What is your personal definition of service learning and your role in the community?
4. What is your personal definition of behavioral change? Do you feel the service you provided as a community nurse brings some form of behavioral change and why?
5. Please post a photograph/picture along with a summary describing how the photo/picture relates to your clinical experience and learning. Focus on metaphors, feelings, and how the experience reminded you of a prior experience.

 

First 30 days of a School Counselor

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In preparation for this assignment review the following:

What To Do the First 30 Days as A School CounselorLinks to an external site.[31:08]
Prepare a substantive response to the following:

Were interrelationships within school organization and the community reviewed? If so, how?
Identify how the various stakeholders engaged in school, family, and community partnerships.

Family structure and style

Posted on | by Brian Leakey

Understanding family structure and style is essential to caring for a family in the
community setting. Conducting a family interview and needs assessment gathers information to
identify strengths, as well as potential barriers to health. This information ultimately helps
develop family-centered strategies for support and guidance.
This family health assessment is a two-part assignment. The information you gather in
the first part of the assignment will be utilized for the second part of the assignment.
Select a family, other than your own, and seek permission from the family to conduct an
interview. Utilize the interview questions complied in your interview questionnaire to conduct a
family-focused functional assessment. Document the responses as you conduct the interview. Do
not put the family’s name, but utilize initials, the gender of each family member, and their age.
The Interview Questionnaire
Develop an interview questionnaire to be used in a family-focused functional assessment. The
questionnaire must include open-ended, family-focused questions to assess functional health
patterns for each of the following:

  1. Collect information about the family’s environment. Is it a single-family dwelling? Are there
    hazards in the environment, accident hazards, do they have indoor plumbing and cooking
    facilities? What type of heating or cooling system is being used in the home?
  2. Does anyone in the family smoke, use chewing tobacco, consume alcohol, or illegal drug use?
  3. Values/Health Perception – how does the family assess their health status? What do they feel
    that they need to work on or trouble areas?
  4. Who is the head of the household? Who has the final say in family decisions?
  5. Does the family operate with specific assigned roles, or are the roles less defined? Who cooks
    dinner? Who does chores? Who helps the children with homework, bathes, and feeds them?
  6. How is the family performing in their roles? Are there work or school-related strain? Are the

The actions that prompted the “border control offensive”

Posted on | by Brian Leakey

Discuss the actions that prompted the “border control offensive” and made the issue of illegal immigration a priority along the SW border and contrast this with the northern border. (Consider this in light of the activities since 2017, especially during the height of COVID). Regarding border enforcement, describe who is the enemy and discuss any public health and safety concerns. Are the concerns the same on both the southwest and northern borders?

Moral Imagination Scale assessment reveal about your moral imagination

Posted on | by Brian Leakey

With clear, insightful critical thinking, reflect and answer the following questions:
What does your score on the Moral Imagination Scale assessment reveal about your moral imagination?
After reading your textbook did you agree with the outcome of the Moral Imagination Self-Assessment?
From the Case Study 2.2 in your text reading, how is the decision of the council to solicit bids and choosing Northern Healthy over Strong Lives an example of failed moral imagination?
What are some alternative solutions to address the concerns of the council without canceling the current contract?
How do your alternative suggestions for Case Study 2.2 align with your Moral Imagination Self-Assessment outcome?