Chemistry Review of pOH Calculations

Sometimes you are asked to calculate pOH rather than pH. Heres a review of the pOH definition and an example calculation. Acids, Bases, pH and pOH There are several ways to define acids and bases, but pH and pOH refer to hydrogen ion concentration and hydroxide ion concentration, respectively. The p in pH and pOH stands for negative logarithm of and is used to make it easier to work with extremely large or small values.  pH and pOH are only meaningful when applied to aqueous (water-based) solutions. When water dissociates it yields a hydrogen ion and a hydroxide. H2O ⇆ H OH- When calculating pOH, remember that [] refers to molarity, M. Kw [H][OH-] 1x10-14 at 25 °Cfor pure water [H] [OH-] 1x10-7Acidic Solution: [H] 1x10-7Basic Solution: [H] 1x10-7 How to Find pOH Using Calculations There are a few different formulas you can use to calculate pOH, the hydroxide ion concentration, or the pH (if you know pOH): pOH -log10[OH-][OH-] 10-pOHpOH pH 14 for any aqueous solution pOH Example Problems Find the [OH-] given the pH or pOH. You are given that the pH 4.5. pOH pH 14pOH 4.5 14pOH 14 - 4.5pOH 9.5 [OH-] 10-pOH[OH-] 10-9.5[OH-] 3.2 x 10-10 M Find the hydroxide ion concentration of a solution with a pOH of 5.90. pOH -log[OH-]5.90 -log[OH-]Because youre working with log, you can rewrite the equation to solve for the hydroxide ion concentration: [OH-] 10-5.90To solve this, use a scientific calculator and enter 5.90 and use the /- button to make it negative and then press the 10x key. On some calculators, you can simply take the inverse log of -5.90. [OH-] 1.25 x 10-6 M Find the pOH of a chemical solution if the hydroxide ion concentration is 4.22 x 10-5 M. pOH -log[OH-]pOH -log[4.22 x 10-5] To find this on a scientific calculator, enter 4.22 x 5 (make it negative using the /- key), press the 10x key, and press equal to get the number in scientific notation. Now press log. Remember your answer is the negative value (-) of this number.pOH - (-4.37)pOH 4.37 Understand Why pH pOH 14 Water, whether its on its own or part of an aqueous solution, undergoes self-ionization which can be represented by the equation: 2 H2O ⇆ H3O OH- Equilibrium forms between the unionized water and the hydronium (H3O) and hydroxide (OH-) ions. The expression for the equilibrium constant Kw is: Kw [H3O][OH-] Strictly speaking, this relationship is only valid for aqueous solutions at 25 °C because that is when the value of Kw is 1 x 10-14. If you take the log of both side of the equation: log  (1 x 10-14)  Ã‚  log  [H3O]  Ã‚  log  [OH-] (Remember, when numbers are multiplied, their logs are added.) log  (1 x 10-14)  Ã‚  -  14-  14  Ã‚  log[H3O]  Ã‚  log  [OH-] Multiplying both sides of the equation by -1: 14  Ã‚  -  log  [H3O]  -  log  [OH-] pH is defined as  -  log  [H3O] and pOH is defined as -log  [OH-], so the relation becomes: 14 pH - (-pOH)14 pH pOH

Stonewall Riot Essay - 743 Words

The stonewall riot was the most revolutionary movement in LGBT+ history.Life before the stonewall riot.Plus, the stonewall movement in action and how it played off and ended.The ripple no from the stonewall riot.Also, did you know that the stonewall riot was the first more important rebel for LGBT+ rights. Before the stonewall riot, homosexuals were completely miserable because of police and homophobes.According to Dissent Magazine â€Å"both the New York Times and the Washington Post ran pieces that assumed the genesis of the gay freedom campaign can be traced to a single dramatic event with a singularly memorable name: Stonewall.†The only reason that people have LGBT+ rights today is because of the stonewall riot.Rights info â€Å" We’ve come a†¦show more content†¦Britannica â€Å"The riots outside the Stonewall Inn waxed and waned for the next five days. Many historians characterized the uprising as a spontaneous protest against the perpetual police harassment and social discrimination suffered by a variety of sexual minorities in the 1960s. Although there had been other protests by gay groups, the Stonewall incident was perhaps the first time lesbians, gays, and transgender people saw the value in uniting behind a common cause.â€Å"The LGBT+ people won w ith their heads held high.Socialist alternative â€Å"At first, everything unfolded according to a time-honored ritual. Seven plain clothes detectives and a uniformed officer entered and announced their presence. The bar staff stopped serving the watered-down, overpriced drinks, while their Mafia bosses swiftly removed the cigar boxes which functioned as tills. The officers demanded identification papers from the customers and then escorted them outside, throwing some into a waiting paddy-wagon and pushing others off the sidewalk.†It was ok till the homos got mad and fought back. What is the effect today because the stonewall riot.Daily beast â€Å"Gallup polling show that 4 percent of Americans are LGBT. But with more millennials self-identifying as LGBT, that number could one day reach the oft-cited ‘1 in 10.’ †There is a large amount of people that are homosexuals that wouldn’t be so accepted for it.The williams institute â€Å"An estimated 3.5% of adults in the United States identify asShow MoreRelatedHistorical Impact of The Stonewall Riots in Stonewall Essay1041 Words   |  5 Pageslook into the historical impact of the Stonewall Riots in Stonewall: The Riots that Sparked the Gay Revolution. This engaging book adds to the genre of sexual orientation discrimination. Carter extensively analyzes the various factors that played a role in igniting the Stonewall riots and the historical impact that the riots had on the Gay Revolution and movement for gay equality. Through the use of interviews, newspapers, and maps, Carter argue s that the riots were a product of many geographical,Read MoreThe Stonewall Riots Essay examples1957 Words   |  8 Pagesone’s homosexuality could lead to the loss of their family, their livelihood and, in some cases, their lives. Geanne Harwood, interviewed on an National Public Radio Broadcast commemorating the twentieth anniversary of the Stonewall Riots, said that â€Å"being gay before Stonewall was a very difficult proposition †¦ we felt that in order to survive we had to try to look and act as rugged and as manly as possibly to get by in a society that was really very much against us.† The age of communist threatsRead MoreThe Stonewall Riots of 1969 Jumpstarted the Gay Movement Essay1043 Words   |  5 Pagesnever have been conceptualized in the United States. This unforgettable incident, the Stonewall riots of 1969, altered the public’s view of the gay community and arguably jumpstarted the next revolution in an entirely new civil rights movem ent. In the wee hours of June 28th, 1969, members of the gay community were forced to enter a string of intense protests when the New York City Police began to raid the Stonewall Inn, a popular hangout spot for drag queens and members of the LGBT community, in GreenwichRead MoreEssay on The Stonewall Riots1229 Words   |  5 Pagesabout prejudice against homosexuals in both riots and artistic forms. Therefore, these people seek to prove to the heterosexual world that homosexual ‘deviancy’ was a myth. The media considers the1969 Stonewall Riots in New York City the spark of the modern gay rights movement. This occurred after the police raided the Stonewall bar, a popular gay bar in Manhattan’s Greenwich Village. Allyn argues that the new energy and militancy generated by the riot played a crucial role in creating the gay liberationRead MoreStonewall Riots Essay2631 Words   |  11 PagesStonewall Riots Liberation for gay people is to define ourselves how and with whom we live, instead of measuring our relationships by straight valuesÂ… To be free territory, we must govern ourselves, set up our own institutions, defend ourselves, and use our own energies to improve our lives (Wittman, 75). Carl Wittmans Refugees from Amerika: A Gay Manifesto, drew together many of the themes dealing with gay liberation. This quote demonstrates the goals of the gay and lesbian movement, a movementRead MoreStonewall Riots Essay1549 Words   |  7 PagesThe Stonewall riots were a series of violent, spontaneous demonstrations by members of the LGBT community against a police raid that took place in the early morning hours of June 28, 1969, at the Stonewall Inn. Riots, violence and discrimination are not things that the LGBT community are unfamiliar with. Their history has been painted with opposition and resiliency. As time has progressed, so has the community and their fight for equality. The comm unity is a medley of very different people from aRead MoreLgbt History And The Modern Era1737 Words   |  7 Pages There are many topics prevalent shown throughout history. History books in today’s society highlight the majority of groups of people and historical events. This essay will prove that there is a problematic issue where LGBT lives and existences are being erased throughout history and the modern era. Throughout, it will be explained how these groups of people are being underrepresented within history, major wars, and the modern era. History covers a very broad spectrum of time, with recorded historyRead MoreA Radical Analysis And Argument On The Issue Of Lgbtq Rights Movement1733 Words   |  7 PagesWithin this essay, the main focus will be to improve a radical analysis and argument in relation to the topic of LGBTQ rights movements. Injustice has developed during the centuries to be a main problem around the world, especially in the United States. There are many different issues that injustice addresses. In order to form this, this essay will discuss the history of LGBTQ rights movements since early 1920s. In reference to the position supporting LGBTQ rights movements, the discussion will concentrateRead MoreThe Impact Of Social On Gender And Sexuality Essay2027 Words   |  9 PagesThe present essay aims to analyse and discuss how social actions related to gender and sexuality have given rise to social change. Particular attention will be given to how views and opinions on gender and sexuality have positive ly evolved throughout the years as a result of decades of social activism led by the members and allies of the LGBT community. In order to do so, the current paper will firstly provide a concise account of how gender and sexuality were seen in the former times, which willRead MoreThe Role Of Sex And Gender As A Cultural Norm1507 Words   |  7 Pageslegality and politicization, these topics vary from one culture to the next and one era to the next. One of the strongest examples of a culture carrying very different ideas of sex and gender is an early Northern European Culture. Carol Clover, in her essay â€Å"Regardless of Sex: Men, Women, and Power in Early Northern Europe,† identifies a â€Å"one-sex, one-gender model †¦ that plays out in the rawest and most extreme terms a scheme of sexual difference that at the level of the body knows only the male and

Finance Funding for Building

Question: Describe about a Report for funding for building? Answer: This report is about the funding for building a college which when started, creates a tough scenario and many other challenges that should be faced during this period. Though it seems to be an easy process but practically it is a tough process which should be faced during this phase. This report practically deals with the education funding of a college and the other investments that are made or required during this process. It also includes projected future investments which is precious for the college or the institution. It also includes the overall expenses or the cost that should be made initially for the growth and the requirements of the college (Kumaul Junker, 2000). The college will provide an opportunity to the students to get education and learn finance. This will help them to acquire knowledge about the importance of accounting, benefits of accounting and different methods of accounting. Main Body: PART 1 The college is expected to generate substantial revenues at the end of each year. Therefore, initial investment will be required to finance the launch strategy and marketing campaign. The college will provide a complete platform for the finance students. The operating cost is related to the expenses that are related to the operations of the college. The decisions that are made for pursuing business in education include all the investments and expenses which are essentially required for the business in education. All the planning should be done properly in order to get proper idea for the expensed in this business. The estimated cost of this business is given in order to get an idea of the expenses that will be taking place to stand up this business. The costs also include the costs of the materials such as books and other study materials, tuition fees and the interest on the loans (George, 2004). This also includes other costs which are related to the business in education. The other costs include board, personal and other monthly expenses including the students health fees. In keeping the above points in mind, the decision for business in education plays a dynamic role in the world of business. The standard budget does not include the cost of the computer which helps in the reduction of the cost for the education. Thus the educ ation system has become a business and the expenses for pursing education have become difficult in the era of this generation (Hickman, Byrd and McPherson, 2013). Hence, it becomes impossible for about 65% of human beings to get the benefits of education or to receive education. The expenses that would be required to start the college include cost of books, cost of tuition, interest on loans and other associated expenses. Expenses Amount ($) Cost of books 35,000 Cost of tuition 75,000 Interest on loans 23,000 Other expenses 17,000 Total 150,000 PART 2 In order to start the business, an initial investment will be needed of an amount of $780,000. The investment will be required for advertisement, operating expenses, maintenance cost, salary for the teachers and staff and other cost (Elliott Elliott, 2008). The measurement of performance will help to evaluate the efficiency of the investment. Return on investment will help to measure the return amount on the cost of investment. The cumulative cash flow will help to obtain the result of payback period from the investment (Kara, 2010). Return on investment = (Gain from investment Cost of Investment)/Cost of Investments = (245,000 150,000) / 245,000 = 0.38 Time (Years) Initial cost ($) cash Flows ($) Cumulative cash flows ($) 0 780,000 1 245,000 245,000 2 180000 425000 3 215000 640000 4 230000 870000 5 252000 1122000 6 280000 1402000 Pay Back period 4 The return on investment from the college is 0.38 and payback period is 4. The return from the investment is quite good and payback period is within 4 fours which show a positive sign for the business (Stittle Wearing, 2008). Conclusion: Overall the business will be in profit with appropriate returns on the investment. The return on investment is 0.38 and the payback period is 4. The college will provide education to the students on finance. Return on investment helps to measure the profitability of the business that indicates whether the company is using its resources efficiently or not. The aim of the college is to provide unique and valuable knowledge to the students. Work Cited: Elliott, B., Elliott, J. (2008).Financial accounting and reporting. Harlow: Financial Times Prentice Hall. George, S. (2004). Demystifying the business plan.Psychiatric Bulletin,28(11), 418-420. https://dx.doi.org/10.1192/pb.28.11.418 Kumaul, H., Junker, A. (2000). Business Plan.WIST,29(9), 531-534. https://dx.doi.org/10.15358/0340-1650-2000-9-531 Stittle, J., Wearing, B. (2008).Financial accounting. Los Angeles: SAGE Publications. Warren, C., Reeve, J., Duchac, J. (2007).Accounting. Mason, OH: Thomson/South-Western. Hickman, K., Byrd, J. and McPherson, M. (2013).Essentials of finance. San Diego, CA: Bridgepoint Education. Kara, O. (2010). Comparing two approaches to the rate of return to investment in education.Education Economics, 18(2), pp.153-165.

Riordan Manufacturing Case Study

The performance of Riordan Manufacturing greatly depends on its ability to plan the capacity of production and effectiveness of its supply chain. Its facilities are located in San Jose, Albrany Georgia, and Hangzhou; moreover, this organization has to cooperate with a variety of venders. The Chinese division of the company produces electric fans that can be purchased by clients from different countries.Advertising We will write a custom essay sample on Riordan Manufacturing: specifically for you for only $16.05 $11/page Learn More In order to achieve growth and reduce operational costs, the management of the company should rely on the principles of lean production, in particular the need to decrease the level of inventory and optimize the process of manufacturing. Moreover, Riordan Manufacturing should focus on the time-efficiency of its operations and effective capacity planning. By acting in this way, they can improve their performance. First of all, t he company can estimate the demand for its product and plan its capacity on the basis of sales data collected within the span of several years. Moreover, this organization can obtain information from customers regarding their annual need for fans manufactured by Riordan. Nevertheless, the company also has to determine its demand for materials. Their major task is to keep the levels of inventory low while avoiding undersupply of stocks. This issue is particularly important because Riordan has to meet the timelines set by customers. It should be noted that Riordan requires various materials, but plastic polymers are probably the most important ones. One of the strategies that Riordan can adopt is VMI or Vendor Managed Inventory. This model implies that the supplier takes full responsibility for the timely delivery of plastic polymers. This approach can be successful, in those cases when manufacturers implement information systems that provide the suppliers with the information about t he quantity of materials that they should deliver. If this strategy is successfully adopted, Riordan decrease the amount of materials stored at their facilities and avoid delays. However, low levels of inventory are only one aspect that they should focus on. Secondly, lean production implies that the company can reduce the amount of time to manufacture and delivery the products to the customer. It should be noted that Riordan cooperates with a global courier FedEx and a local Chinese company. They deliver the fans manufactured by Riordan Manufacturing to clients.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More The task of the company is to monitor the performance of these delivery companies, especially their ability to adhere to the schedules set by the clients of Riordan. This is another precaution that they should take. In this way, the management of Riordan Manufacturing can gain the loy alty of their customers who rely on the efficiency of the company. Additionally, the managers of Riordan should look at the steps that are necessary to manufacture a fan. People, who design the process of production, should reduce the movement of workers and equipment across manufacturing facility. The elimination of unnecessary procedures is another element of effective production, because it enables company to cut operational costs and improve time-efficiency. This is another step that should be taken. So, Riordan Manufacturing should focus on the following aspects as inventory management, effective work of supply chain, and production processes. These elements are critical for reducing the cost of manufacturing and time-efficiency of the company. The strategies described in the paper will help Riordan Manufacturing become more effective in terms of their organizational performance. This essay on Riordan Manufacturing: was written and submitted by user Brooke C. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Quotes That Will Help You Understand Yourself Better

Quotes That Will Help You Understand Yourself Better When asked to describe yourself, you will most probably list your achievements, qualifications, work experience, and designation. To make your profile sound complete, you may even throw in a hobby for good measure. But are these the things that really make up who you are?  The toughest questions to answer are the ones about you. Who am I? What do I know about myself? When you begin to reflect ponder on these questions, you will find yourself squirming uncomfortably. Probe a little deeper and you will find that your name, race, gender, and other personal details are merely tags. To know yourself, look beyond superficial embellishments. It does not matter whether you are a Nobel Prize winner or not. Rediscover yourself through these quotes, perfect for self-reflection.   Muhammad AliIts lack of faith that makes people afraid of meeting challenges, and I believed in myself. Oscar WildePerhaps, after all, America never has been discovered. I myself would say that it had merely been detected. Mark TwainI dont like to commit myself about heaven and hell you see, I have friends in both places. Mark TwainAs an example to others, and not that I care for moderation myself, it has always been my rule never to smoke when asleep, and never to refrain from smoking when awake. Marilyn MonroeI have feelings too. I am still human. All I want is to be loved, for myself and for my talent. Marilyn MonroeI restore myself when Im alone. Maya AngelouI long, as does every human being, to be at home wherever I find myself. Thomas JeffersonI do not take a single newspaper, nor read one a month, and I feel myself infinitely the happier for it. David AllenYou can do anything, but not everything. Lin-ChiWhen hungry, eat your rice; when tired, close your eyes. Fools may laugh at me, but wise men will know what I mean. John WilmotBefore I got married I had six theories about bringing up children; now I have six children and no theories. Jean RostandMy pessimism extends to the point of even suspecting the sincerity of the pessimists. Lily TomlinSometimes I worry about being a success in a mediocre world. Richard LewisI quit therapy because my analyst was trying to help me behind my back. Clarence DarrowWhen I was a boy I was told that anybody could become President. Now I’m beginning to believe it. Cullen HightowerLaughing at our mistakes can lengthen our own life. Laughing at someone else’s can shorten it. Cyril ConnollyThere are many who dare not kill themselves for fear of what the neighbors will say. Albert EinsteinThe person who reads too much and uses his brain too little will fall into lazy habits of thinking. Andre GideBelieve those who are seeking the truth. Doubt those who find it. Aryeh FrimerI’d rather live with a good question than a bad answer. Bill VaughanWe lear n something every day, and lots of times it’s that what we learned the day before was wrong. Cale YarboroughDon’t ever wrestle with a pig. You’ll both get dirty, but the pig will enjoy it. Christopher HamptonAsking a working writer what he thinks about critics is like asking a lamppost how it feels about dogs. Cyril ConnollyBetter to write for yourself and have no public, than to write for the public and have no self. Dame Edna EverageNever be afraid to laugh at yourself, after all, you could be missing out on the joke of the century. Edith SitwellI am patient with stupidity but not with those who are proud of it. Gordon R. DicksonSome people like my advice so much that they frame it upon the wall instead of using it. Lily TomlinThe trouble with the rat race is that even if you win, you’re still a rat. NapoleonNever ascribe to malice, that which can be explained by incompetence.Thomas Szasz When a person can no longer laugh at himself, it is time for others to laugh at him.

Impact of alcohol on the family Essay Example | Topics and Well Written Essays - 1000 words

Impact of alcohol on the family - Essay Example anxiety; to forget about difficulties or feel less disheartened; to rejoice or merely to feel happy (See Figure 1) (Understanding the relationship between alcohol and mental health, n.d., p. 5, 13). There were approximately 863,300 alcohol associated admittances to the hospital in the year range of 2007-2008. This is an augmentation of 69 percent since 2002-2003 when there were nearly 510,200 alcohol associated admittances. In 2007-2008, approximately 62 percent of alcohol associated admittances were for males. Among both males and females, there was more admittance in the older age categories in comparison to the younger age categories. In England in the year 2007, there existed 134,429 recommendation items for drugs for the rehabilitation of alcohol dependence prescribed in primary care surroundings in the community. This is an enhancement of about 31 percent since 2003 when there were 102,741 prescription components. In 2007, in England, there were about 6,541 demises directly associated with alcohol. This has grown by 19 percent since 2001. Of these alcohol associated deaths, the majority (4,249) expired due to alcoholic liver disease (Statistics on Alcohol: England, 2009, p. 8). The unfavorable impact of alcohol mistreatment on families, and its role in relations’ break-up are issues when considering the involvement of alcohol to communal exclusion. Heavy drinking is a general issue in family disintegration, and marriages where one or both associates have an alcohol problem are doubly expected to result in divorce as marriages where alcohol problems are not present. The psychological effect on children can be vast, often bringing about the development of alcohol issues later in their individual lives. The youngsters who are of 15 years of age having a problem drinking parent are likely to have 2.2 to 3.9 times more psychiatric disorder in comparison to other youngsters. The alcohol consumption has been found to higher among the teenagers who have problem

All Processing Beneath Conscious Awareness is Carried out by Essay

All Processing Beneath Conscious Awareness is Carried out by Subcortical Structures - Essay Example The process of conscious awareness demands concentration since one maybe conscious but not aware of their conscious state. People possess a strong sense of own self and observe their feelings, thinking and how they go about their lives. Human posses a powerful sense of own self, and can observe their feelings, thinking and going about lives. Sub cortical structures refer to the structures that exist below the cerebral cortex surface. All the processing that is beneath a person’s conscious awareness is not necessarily executed by sub cortical structures. The fear response It explains that sub cortical structures facilitate all unconscious processing. When a person feels in danger, it is the information that reaches the amygdale through the sub cortical pathway that triggers flight or fight response. The sub cortical pathway involves the transfer of information from the sense organs to the thalamus and finally to the amygdale. For processing that is beneath conscious awareness, information travels through the sub cortical pathway which is usually shorter and carries less information concerning the stimulus (Open University Course Team, 2006). This transfers less information concerning the stimulus and thus triggers a fear response. For instance, a person jumps at a harmless shadow in response to the stimulus. The benefit of this transfer method is that it allows for quick response to various stimuli. On the other hand, the cortical structures may also facilitate processing that is beneath conscious processing. This occurs where the cortical pathway delivers information concerning various stimuli leading to various responses. This may happen is situations that do not require quick response to the situation since the cortical pathway is slow. In cases of death and life situations, the pathway may lead to death situations due to it slow characteristic. Despite this drawback, it can also lead to unconscious reaction to various stimuli (Open University Course T eam, 2006) Attention and consciousness As part of one’s normal activities, we perform many actions that do not require attention. For instance, a driver depresses the clutch pedal and hence changes gear automatically. This is a process that occurs in a smooth manner during the appropriate time while still concentrating on what is happening on the road. This indicates that sub cortical structures facilitate unconscious reactions to various responses. This takes place through the sub cortical pathway which delivers information unconsciously leading to a quick response to the stimuli. However, this is a process that one acquires through learning where the sensory-motor coordination will now tend to occur beneath conscious awareness. This process becomes automatic and effortless thus giving a person a chance to concentrate elsewhere (Open University Course Team, 2006). On the other hand, before we learn these activities, it is usually a conscious process. For instance, a research carried by Raichle discovered that there exists a whole suite in the process of brain activation between effortless and automatic phases that a person practices. They proved that attention is necessary for an unlearned activity while there is no demand for concentration during an automatic response. Blind sight This is a condition where the sufferer responds to visual stimuli without perceiving them consciously. For instance, a monkey with a blind sight named Helen