Chemical and Physical Properties Essay Example for Free

Chemical and Physical Properties Essay Observe the solubility in hot water. c. Tear off approximately 1/2-cm pieces of both red and blue litmus paper. d. Allow the solution to cool, and using the glass stirring rod, transfer a drop of the solution onto a piece of litmus paper. Record the results. Clean the stirring rod. 5. Third test tube: a. Add a few pipet drops of HCl (hydrochloric acid) to the sample and stir. NOTE: Use the test tube holderclamp as some reactions are exothermic, i. e. the test tube may get very hot. Record any apparent reaction or solubility. Clean the stirring rod. 6. Fourth test tube: Add a few pipet drops of NaOH (sodium hydroxide) to the sample. Stir. Record any apparent reaction or solubility. Clean the stirring rod. 7. Thoroughly clean and dry all 4 test tubes. Repeat Steps 2 though 6 with the next substance. Experimental Results Substance: Zn Color: Grey Odor: None Effect of Heat: decreases content curled in with lighter color Solub. Or Reaction w/cold H20: No reaction observed / not soluble Solub. Or Reaction w/ hot H20: Prolonged boiling from retained heat/ non soluble Litmus test: None observed Dilute HCI: positive reaction resulting in the formation of gas, carbonation, and darkened Dilute NaOH: creates foggy substance and blackens solid Substance: Cu Color: Copper Odor: None noted Effect of Heat: Turned black Solub. Or Reaction w/cold H20: not soluble Solub. Or Reaction w/ hot H20: not soluble Litmus test: None observed Dilute HCI: tarnished not observed Dilute NaOH: none observed Substance: Mg Color: Silver Odor: None observed Effect of Heat: increases in dullness Solub. Or Reaction w/cold H20: no reaction observed/ non soluble Solub. Or Reaction w/ hot H20: increased heat / non soluble Litmus test: no change Dilute HCI: rapid boiling and heat Dilute NaOH: liquid is cloudy Substance: MgO Color: White Odor: None observed Effect of Heat: none observed Solub. Or Reaction w/cold H20: Soluble Solub. Or Reaction w/ hot H20: Soluble Litmus test: Red paper turned blue / blue no reaction Dilute HCI: Carbonated Soluble Dilute NaOH: Dense Soluble Substance: CuC03 Color: Green Odor: pungent Effect of Heat: turned black Solub. Or Reaction w/cold H20: slightly murky, but does not appear soluble Solub. Or Reaction w/ hot H20: slightly murky, but none soluble Litmus test: changes blue to red showing slight acidity Dilute HCI: carbonation and soluble Dilute NaOH: turns blue w/ slight soluble Substance: Cu(NO3)2 Color: Blue crystals Odor: slight odor Effect of Heat: melted and turned green Solub. Or Reaction w/cold H20: turned water blue and is soluble Solub. Or Reaction w/ hot H20: no change observed from the cool water and is soluble Litmus test: blue litmus turned to red for acid Dilute HCI: turned green Dilute NaOH: soluble formed Substance: NaCl Color: white crystals Odor: none observed Effect of Heat: none noted Solub. Or Reaction w/cold H20: becomes slightly soluble Solub. Or Reaction w/ hot H20: fully soluble Litmus test: red turns to blue indicating that it’s basic Dilute HCI: none observed Dilute NaOH: none observed QUESTIONS: A Did you observe any chemical changes in this experiment? Chemical changes are observed during the experiment B What evidence did you use to decide that something was a chemical change? Indications of chemical changes were preceded by the burning, rusting, ermenting, and decomposing of the substances. As a result, a new substance will have its own unique physical properties C Give at least two examples of chemical changes you observed. Adding colorless sodium hydroxide to blue copper(II) nitrate produces a light blue precipitate Zinc diluted with Hydrogen Chloride is positive for a chemical reaction resulting in the formation of gas, carbonation, and darkened D Classify the following p roperties of sodium metal as physical or chemical: Silver metallic color – physical Turns gray in air – chemical Melts at 98oC physical Reacts explosively with chlorine chemical E Classify the following changes as physical or chemical: Water freezes at OoC – physcical change Baking soda when combined with vinegar produces bubbles:- chemical change Mothballs gradually disappear at room temperature – physical change Ice cubes in a freezer get smaller with time – physical change Baking soda loses mass as it is heated – physical chemical Tarnishing of silver – chemical change F How would you show that dissolving table salt is a physical change? A physical change will not change the composition of a substance. When adding water to a salt, the ions of table salt are hydrated with water molecules which reduced the strong electrostatic forces of the ions. To return salt to the original state, simply remove the hydrated water molecules by boiling the table salt. Conclusions: In a chemical change one or more new substances are formed. The new substance has its own unique identity which is different from the original. It has properties that are different than those of the starting material; in addition, the original materials is not able to be reproduced by physical means.

Vietnam: The Mixture of Protests and Politics Essay -- essays research

  Ã‚  Ã‚  Ã‚  Ã‚  The United States was unjustified in its involvement in the Vietnam War because, in my opinion, the U.S had little justification to sacrifice thousands of innocent youths for political ideals. It was the longest and most unpopular war in which the United States fought. Many Americans on the home front protested their government’s involvement in the war. Many young Americans felt that there was no reason to fight for a cause they did not believe in, especially in such a strange foreign country. The civil rights movement also strongly influenced many of the war protests. This was because such a large percentage of minority soldiers sent over to fight were being unfairly treated. The African American soldiers were being ordered to the frontlines more often than white soldiers were.   Ã‚  Ã‚  Ã‚  Ã‚  Another vigorously protested topics of the Vietnam War was Conscription. Most of two million soldiers who fought in the war were chosen through the Selective Service program. The draft policy has been an imprint of America the Civil War. This policy has been used in every major United States war since. Young adult males were required to register for the draft when they turned eighteen years old. A lottery system decided who would be called to combat. If selected for the draft, the draftee had to serve 24 months of active duty. During the Vietnam War, the hostility Americans felt towards the draft erupted and caused major protests across the nation.   Ã‚  Ã‚  Ã‚  Ã‚  They are where many ways people protested the draft. Some eligible draft members avoided the draft by leaving the country for Canada, Sweden, and a number of other countries. Other men protested by publicly burning their draft cards.   Ã‚  Ã‚  Ã‚  Ã‚  Lyndon B. Johnson won the presidential election on November 1, 1964. Despite the tension between the â€Å"Doves† and the â€Å"Hawks†, president Lyndon B. Johnson stood by his policy of slow escalation. As he began his term in office in 1965, he was confident that his programs to better the nation would be established despite that â€Å"nagging little war in Vietnam†# as News Week reported it.   Ã‚  Ã‚  Ã‚  Ã‚  Protests have long been a way for people to display their difference in opinion and gain support. One of the many protests against the war that had a powerful effect on public opini... ...been involved in because it was against an unknown enemy in an unknown territory. The consequences of the war far exceed the benefits. The citizens during that period of time would definitely agree. The war caused a severe decrease in the countries moral. Many people no longer trusted the government and grew extremely skeptical of its actions. The recession soon after the war did not help in boosting the spirit of the country. The Vietnam war also exposed many of the United States‘ weaknesses. It showed that our government had planned poorly. It also showed that it was possible to resist the United States as a mass. There is a major difference between one disagreeing voice and a vast number of them. In the end the United States had devastating losses socially and economically. Protests and politics will always go hand in hand when the â€Å"sheep† disagree with the â€Å"herderâ€Å". Bibliography: - Nhu Tang, Truong. 1985. A Vietcong Memoir. New York: Harcourt Brace Jovanovich, Publishers - Dougan C. & Lipsman S. 1984 The Vietnam Experience: A Nation Divided. Boston: Boston Publishing - McDougal Littell. 2003 World History. United States of America - http://www.pbs.org/

Patient Safety in Rural Nursing Because of Nursing Shortage Essay

The United States is in the midst of a nursing shortage that is being increasingly discussed in the context of declining healthcare facilities in the nation. Over 1 in 7 hospitals (15%) report a severe RN nursing shortage with more than 20% of their nursing positions vacant and 80%-85% of hospitals report that they have a nurse shortage This shortage is predicted to intensify over the next decade or two as nurses belonging to the generation of baby boomers retire. The Nursing Management Aging Workforce Survey released in July 2006 by the Bernard Hodes Group reveals that 55% of surveyed nurses and nurse managers reported their intention to retire between 2011 and 2020 (AACN, 2006). In April 2006, officials with the Health Resources and Services Administration (HRSA) released projections that the nation’s nursing shortage would grow to more than one million nurses by the year 2020 (HRSA, 2003). Nursing colleges and universities are struggling to expand enrollment levels. In the report titled â€Å"What is Behind HRSA’s Projected Supply, Demand, and Shortage of Registered Nurses? † analysts show that all 50 states will experience a shortage of nurses to varying degrees by the year 2015 (AACN, 2006). Factors driving the growth in demand for nurses include: an 18 % increase in the population; a larger proportion of elderly persons requiring proportionally higher levels of medical care; advances in medical technology that heighten the need for nurses; an increase in the number of work settings for nurses and demographic changes in an increasing U.  S. population (HRSA, 2003). Factors that are causing a decrease in the supply of nurses are: the declining number of nursing school enrollees, graduates and faculty; the aging of the registered nurse workforce; work environment issues leading to job burnout and dissatisfaction; high nurse turnover and vacancy rates; and declines in relative earnings (HRSA, 2003). Due to this critical imbalance between the supply and demand of nurses, the United States is today facing a nursing shortage crisis. Nursing shortage in rural settings: Research shows that nursing shortage as defined by the federal government exists mainly in rural areas of the country that are far away from metropolitan areas. These areas suffer more from nursing shortage than urban areas due to lack of economic resources to compete with urban based employers, inadequate training for nurses to practice in rural settings and dependence on non-hospital care settings in the rural areas. According to a paper published by the National Clearinghouse for Frontier Communities, â€Å"Impacts and Innovations in Frontier America† (December 2004), nurse shortages in frontier and rural communities derive not only from the current national shortage of nurses but also a long-standing trend favoring rural-to-urban migration of the educated, skilled workforce. There is also the issue of money. When examined by rurality, LPNs in rural settings ($21,941) report an income 23% lower than that reported by LPNs in urban settings ($28,408) (NCSBN, 2006). A large number of rural communities are losing existing employment and education opportunities and the paper suggests that the community context of a nurse shortage can be addressed only through community-based development approaches as well as the crafting of healthy rural policies. The Robert Wood Johnson Foundation published a report titled â€Å"The American Nursing Shortage† with the help of its researchers Bobbi Kimball and Edward O’Neil. According to this report, even when some people feel a calling for the professions such as nursing, they are deterred by certain dimensions of the lifestyle, such as low pay, compulsory mobility and the need for service in rural areas. Available data and literature suggest that the impact of the nursing shortage on rural and frontier communities varies greatly from community to community. IN some rural places, there is no difficulty in filling vacancies but there may be just a few good paying jobs. However, in most rural areas, recruiting for openings is estimated to take about 60 percent longer to fill than in urban areas (Long 2000). Nurse employers receive many applications but often find applicants do not meet desired qualifications and then, they often have to accept lower qualifications to fill positions. Differences in education between frontier and non-frontier nurses exist both in their basic nursing education and the highest degree earned (FEC, 2003). Fully half of frontier nurses had qualified as RNs through associate degree (ADN) programs, in comparison with 40% of the non-frontier nurses; in contrast, non-frontier nurses were more likely to have attended diploma or BSN programs. Differences remain when looking at highest degree received; 44% of frontier nurses’ highest degree is the ADN, in contrast with 34% of the non-frontier nurses. And, while the percentage of nurses who have earned a bachelors degree is slightly lower among frontier nurses (30% frontier, 33% non-frontier), the percentage who has earned masters degrees is also lower among frontier (7% frontier compared with 10% non-frontier) (FEC, 2003). At Prairie Vista Nursing Home in Holyoke, Colorado, a town of about 1,900 people about 130 miles northeast of Denver, administrators reportedly had to work double shifts to cover shifts after a nurse retired. Recruiting nurses to work in rural areas is difficult to begin with; and, when urban-trained nurses enter rural practice, they often find they are ill-prepared for the demands of the job, contributing to job dissatisfaction and turnover. Once there, they typically find it difficult to access continuing education opportunities that fit their needs. â€Å"When educators bring their knowledge to us, they often do not realize that we practice differently than urban centers do† (rural nurse, quoted in Molinari 2001). In the rural setting, nurses typically fill multiple roles. There is a need for a broad range of skills and cross training in multiple jobs. â€Å"Rural nursing requires a high level of generalist skills and critical thinking† (Fahs, Findholt et al. 2003). Another issue is that the ethnic composition of the rural nurse workforce does not correspond with the population it serves. The ANA Rural Nursing module identifies five factors that affect rural nursing practice: threats to anonymity and confidentiality; traditional gender roles; geographic isolation; professional isolation; and scarce resources (Bushy 2004). Patient safety for nursing shortage in rural settings: Surveys and studies published recently confirm that the shortage of registered nurses is impacting the delivery of health care in the U. S. and negatively affecting patient outcomes. Research now shows that how well patients are cared for by nurses affects their health, and sometimes can be a matter of life or death. These studies have found that (HRSA, 2003): †¢ A total of 53% of physicians and 65% of the public cited the shortage of nurses as a leading cause of medical errors (Harvard School of Public Health, 2002,); A higher proportion of nursing care and a greater number of hours of care by nurses per day are associated with better outcomes for hospitalized patients (Needleman et al. , 2002); †¢ Nursing actions, such as ongoing monitoring of patient’s health status, are directly related to better health outcomes (Kahn et al. , 1990) ; †¢ 126,000 nurses are needed immediately to fill vacancies at our Nation’s hospitals. Today, 75% of all hospital vacancies are for nurses (American Organization of Nurse Executives, 2002); Low nurse staffing levels have contributed to 24% of unanticipated events in hospitals that resulted in death, injury or permanent loss of function (Joint Commission of Accreditation of Healthcare Organizations, 2002); †¢ Patients who have common surgeries in hospitals with low nurse-to-patient ratios have an up to 31% increased chance of dying. Every additional patient in an average hospital nurse’s workload increased the risk of death in surgical patients by 7% (Aiken et. al. , 2002); Low nursing staff levels were a contributing factor in 24% of hospitals’ reports of patient deaths and injuries since 1996 (Joint Commission of Accreditation of Healthcare Organizations, 2002); †¢ Less nursing time provided to patients is associated with higher rates of infection, gastrointestinal bleeding, pneumonia, cardiac arrest, and death from these and other causes (Needleman et al. , 2002); and †¢ Nurse executives surveyed indicated that staffing shortages are contributing to emergency department overcrowding and the need to close beds (American Organization of Nurse Executives, 2002). The Joint Commission on Accreditation of Healthcare Organizations, 2002 has issued a warning that failure to address the problem of nursing shortage in rural areas will result in increased deaths, complications, lengths-of-stay and other undesirable patient outcomes. JCAHO examined 1,609 hospital reports of patient deaths and injuries since 1996 and found that low nursing staff levels were a contributing factor in 24% of the cases (Joint Commission on Accreditation of Healthcare Organizations, 2002). New research indicates that a shortage of registered nurses prepared at the baccalaureate and higher degree level is endangering patients. In an article in the September 24, 2003 issue of the Journal of the American Medical Association, Dr. Linda Aiken and her colleagues at the University of Pennsylvania found that patients experience significantly lower mortality and failure to rescue rates in hospitals where more baccalaureate-prepared nurses provide direct patient care. At least 1,700 preventable deaths could have been realized in Pennsylvania hospitals alone if baccalaureate-prepared nurses had comprised 60% of the nursing staff and the nurse-to-patient ratios had been set at 1 to 4. Unfortunately, only 11% of PA hospitals have more than 50% of the nursing staff prepared at the baccalaureate level ( Institute of Medicine, 2003). A survey titled â€Å"Views of Practicing Physicians and the Public on Medical Errors†, conducted by the Harvard School of Public Health and the Henry J. Kaiser Family Foundation reported in the December 12, 2002 issue of the New England Journal of Medicine found that 53% of physicians and 65% of the public cited the shortage of nurses as a leading cause of medical errors. Overall, 42% of the public and more than a third of U. S. octors reported that they or their family members have experienced medical errors in the course of receiving medical care (AACN, 2006). Nurse researchers at the University of Pennsylvania determined that patients who have common surgeries in hospitals with high nurse-to-patient ratios have an up to 31% increased chance of dying. Funded by the National Institute for Nursing Research, the study found that every additional patient in an average hospital nurse’s workload increased the risk of death in surgical patients by 7% (AACN, 2006). According to an extensive study by Dr.  Jack Needleman and Peter Buerhas, published in the New England Journal of Medicine in May 2002, a higher proportion of nursing care provided by RNs and a greater number of hours of care by RNs per day are associated with better outcomes for hospitalized patients (AACN, 2006). Conclusion: Available data and literature suggest that the issue of nurse shortage is a national one. Yet, the impact of nurse shortage is better seen in the rural areas where nurses are not well paid, existing nurses are not well qualified and patients are dependent on local medical facilities. Because most frontier and rural communities are distant from hospitals, residents may rely on non-hospital based care settings for a greater proportion of their care than their urban counterparts. Due to these reasons, nurse shortage in rural areas has endangered patient safety. Nurses are the primary source of care and support in the health care sector and hence, a sufficient supply of nurses is critical in providing the national and especially the rural population with quality health care. Nurses are expected to play an even larger role in the future.

My Thoughts About Sexual Identity - 1665 Words

When asked to write a candid and self-revealing journal about my experiences, thoughts, feelings and beliefs related to human sexuality, I became intrigued. Throughout my early life, my own sexuality has been something of considerable focus because I knew that I was different than the average boy. Later, I discovered this difference was called being gay, homosexual, a faggot, or queer. I remember these names stinging just a bit because I did not want to be different than other boys, I just wanted to be accepted and close to other boys. Consequently, my identity orbited around numerous fears, thoughts, and reactions by others and me to how I subsisted as a person because of what I discovered about myself during my journey through childhood,†¦show more content†¦Moreover, I learned that my sexuality was natural and healthy until the AIDS crisis in the eighties. The crisis around HIV/AIDS generated numerous myths which may or may not have been considered sexual, but the most de vastating was the revision of the myth that â€Å"God hated fags.† This was proven to mainstream society because God was punishing gay men with AIDS and causing us to suffer for our sin of loving. As one can see, my sexuality at an early age was wrapped up in politics, religious proclamations, and fear. It was only when I assimilated myself in a community of gay people that I truly understood that the myth based rhetoric was wrong and damaging to my well-being. Identify when you were first aware of yourself as a sexual being. How/when did that come about? The bombast of politics and religion was not in my world view when I first discovered that I stood as a sexual being. When I was in kindergarten, I became aware that something was driving me (a feeling) toward physical contact with another person even though they were male or female. 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