Avogadros Number - Example Chemistry Problem

Avogadros number is used in chemistry when you need to work with very large numbers. Its the basis for the mole unit of measurement, which provides an easy way to convert between moles, mass, and the number of molecules. For example, you can use the number to find the number of water molecules in a single snowflake. (Hint: Its an enormous number!) Avogadros Number Example Problem - Number of Molecules in a Given Mass Question: How many H2O molecules are there in a snowflake weighing 1 mg? Solution: Step 1 - Determine the mass of 1 mole of H2O Snowflakes are made of water, or H2O. To obtain the mass of 1 mole of water, look up the atomic masses for hydrogen and oxygen from the Periodic Table. There are two hydrogen atoms and one oxygen for every H2O molecule, so the mass of H2O is: mass of H2O 2 (mass of H) mass of Omass of H2O 2 ( 1.01 g ) 16.00 gmass of H2O 2.02 g 16.00 gmass of H2O 18.02 g Step 2 - Determine the number of H2O molecules in one gram of water One mole of H2O is 6.022 x 1023 molecules of H2O (Avogadros number). This relation is then used to convert a number of H2O molecules to grams by the ratio: mass of X molecules of H2O / X molecules mass of a mole of H20 molecules / 6.022 x 1023 molecules Solve for X molecules of H2O X molecules of H2O ( 6.022 x 1023 H2O molecules ) / ( mass of a mole H2O  · mass of X molecules of H2O Enter the values for the question:X molecules of H2O ( 6.022 x 1023 H2O molecules ) / ( 18.02g  · 1 g )X molecules of H2O 3.35 x 1022 molecules/gram There are 3.35 x 1022 H2O molecules in 1 g of H2O. Our snowflake weighs 1 mg and 1 g 1000 mg. X molecules of H2O 3.35 x 1022 molecules/gram  · (1 g /1000 mg )X molecules of H2O 3.35 x 1019 molecules/mg Answer There are 3.35 x 1019 H2O molecules in a 1 mg snowflake. Avogadros Number Problem Key Takeaways Avogadros number is 6.02 x 1023. It is the number of particles in a mole.You can use Avogadros number to convert between mass and the number of molecules of any pure substance.If you are given the mass of a sample (such as a snowflake), convert the mass to moles, and then use Avogadros number to convert from moles to molecules.

Analysis Of The Love Song Of J. Alfred Prufrock - 1371 Words

The dramatic monologue, The Love Song of J. Alfred Prufrock, is a short poem written by the Nobel Prize winner, and scholar T.S. Eliot. He wrote this poem and published it in the Poetry Magazine in 1915, while he was still in college at Washington University in St. Louis. Eliot is one of the most important English- language writers of the 20th century, and he lived in St Louis at an early age being raised by his mother. His mother was both loving and manipulative, and from that, a lonely and strict adolescence came a man with an immense desire to be independent (Gladstein). Eliots poem is about a man by the name J. Alfred Prufrock, who is a very awkward man, telling us the story of him trying to open himself up to his lover. Prufrock is†¦show more content†¦Bradley. Bradley examination was on Private Consciousness and this became a theme of Eliots later works (Puchner 2119). The most relevant characteristic that both Eliot and Prufrock share is private consciousness. Private consciousness means to have a heightened sense of awareness as a person and to care about what others think of the actions that you take. Prufrock speaks tells the readers about this matter a few times. Prufrock is very self-conscious about himself and seems to care mostly about how he looks and what others think when they look at him: With a bald spot in the middle of my hair (The will say: How his hair is growing thin!)†; My morning coat, my collar mounting firmly to the chin, My necktie rich and modest, but asserted by a simple pin (They will say: But how his arms and legs are thin!); Do I dare—Disturb the Universe? (Eliot 2124). The narrator, Prufrock, is really worried about what the people around him think. More importantly, he is also very curious and nervous about how his lover will respond to the feelings that he has for either him or her. Near the end of the work, Prufrock goes on to tell readers about how he is getting older which also compliments the idea of private consciousness I grow old †¦ I grow old†¦ I shall wear the bottoms of my trousers rolled. (Elliot 2126). Eliot heavily portrayed this theme to be distinctly private consciousness, because of the importance and emphasis on how Prufrock reallyShow MoreRelatedAnalysis Of The Love Song Of J. Alfred Prufrock1386 Words   |  6 Pagesâ€Å"The Love Song of T.S Eliot† In â€Å"The Love Song of J. Alfred Prufrock† the reader can clearly understand that T.S Eliot is straightforward as one can get within a poem. In the beginning of the poem, one can infer that Prufrock is being used as a facade to convey Eliot’s inner self who is an introvert that doesn’t quite fit in with the modern day society. â€Å"Prufrock† sees his personal life as a burden that he cannot mend while he tries to conform into the middle class society that everyone views asRead MoreLiterary Analysis Of The Love Song Of J. Alfred Prufrock Essay1336 Words   |  6 PagesA Literary Analysis of T.S. Eliot’s â€Å"The Love Song of J. Alfred Prufrock† T.S. Eliot was one among few poets and authors that dominated the years between the First and Second World Wars. Eliot showed his use of modernism techniques through â€Å"The Love Song of J. Alfred Prufrock†, creating a powerful reputation around the world, particularly as a member of The Lost Generation in the 1920s. Eliot moved to and settled in London where he worked with famous poets including Ezra Pound, and published hisRead MoreCritical Analysis : The Love Song Of J. Alfred Prufrock895 Words   |  4 PagesEssay Two- Critical Analysis Writing a critical analysis is diving into the text. Readers must break down all parts of the text and pin pointing the author s purpose for the writing. A very challenging poem to analysis is T.S. Eliot’s â€Å"The Love Song of J. Alfred Prufrock†. It has been declared that â€Å"The Love Song of J. Alfred Prufrock† started that Anglo-American modernist movement with poetry. The poem was the first poem with American poetry to flow free verse. At the time, it was deemedRead MoreAnalysis of The Love Song of J. Alfred Prufrock Essay602 Words   |  3 PagesAnalysis of The Love Song of J. Alfred Prufrock J. Alfred Prufrock constantly lived in fear, in fear of life and death. T. S. Eliot divided his classic poem into three equally important sections. Each division provided the reader with insight into the mental structure of J. Alfred Prufrock. In actuality, Prufrock maintained a good heart and a worthy instinct, but he never seemed to truly exist. A false shadow hung over his existence. Prufrock never allowed himself to actually live. He hadRead MoreLiterary Analysis Of The Love Song Of J. Alfred Prufrock1497 Words   |  6 PagesLiterary Analysis of The Love Song of J. Alfred Prufrock The human psyche has perpetually been characterized by a nagging sense of doubt. When one makes the decision to follow through (or, rather, not follow through) with an action, it is unlikely that he does so without questioning whether he made the right choice; this is recurring theme in literature, evident in works such as Crime and Punishment and A Separate Peace. T.S. Eliot’s The Love Song of J. Alfred Prufrock explores the universal natureRead More Love Song of J. Alfred Prufrock Essay: An Analysis846 Words   |  4 PagesAn Analysis of The Love Song of J. Alfred Prufrock The general fragmentation of The Love Song of J. Alfred Prufrock is obvious. The poem seems a perfect example of what Terry Eagleton calls the modern transition from metaphor to metonymy: unable any longer to totalize his experience in some heroic figure, the bourgeois is forced to let it trickle away into objects related to him by sheer contiguity. Everything in Prufrock trickles away into parts related to one another only by contiguityRead MoreAnalysis Of The Poem The Love Song Of J. Alfred Prufrock1529 Words   |  7 PagesAnalysis of the setting of the poems â€Å"The Love song of J. Alfred Prufrock† and â€Å"Something Whispered in the Shakuhachi† â€Å"The Love song of J. Alfred Prufrock† and â€Å"Something Whispered in the Shakuhachi† are poems written by T.S. Eliot and Garrett Hongo correspondently. Both poems put a great emphasis on the depiction of the narrator’s emotion. The poems are focused on feelings and emotions of their narrators. At the same time, it should noted that a lot of attractive in both poems is given to the settingRead MoreThe Love Song Of J Alfred Prufrock Analysis934 Words   |  4 Pagesyou do something that you love than you will have a deeper desire to continue or to succeed in it. In The Love Song of J. Alfred Prufrock a man doesnt know why his life is so horrible. He wanders the streets of his past looking for why hes life is so dull. The man doesnt know what is wrong with his life, he doesnt understand why life is so hard. T. S. Eliot in The Love Song of J. Alfred Prufrock teaches us about how hard life can be on a single and routine man. Prufrock, the main character, demonstratesRead MoreAnalysis Of The Love Song Of J Alfred Prufrock1007 Words   |  5 Pagesinterrelation between time and decay conveys the transformative impact of industrialisation upon modern society. Modernity altered the human psyche into a detached, fragmentation of its previous form prior to the Modernist world. The Love Song of J. Alfred Prufrock and Preludes provide a poetic representation of how the corrosion of traditionalism preceded a sense of abandonment and isolation which infects individuals within the urban setting. Despite conveying early 20th century receptions of industrialisationRead MoreAnalysis Of The Love Song Of J. Alfred Prufrock1064 Words   |  5 PagesLoneliness is a feeling that we have all felt here and there. A man in the poem â€Å" The Love Song of J. Alfred Prufrock† by T.S Eliot feels trapped which caused him to have disorders. Nothing has never changed from living in the same city and not using his time wis ely. He tried numerous ways to approach women but his low self esteem stopped him from moving forward. Although Prufrock seems like a miserable person, Prufrock suffers from obsessive compulsive disorder, depression, and paranoia that caused him

Business to Business vs Business to Consumer Sites Free Essays

Ethical, legal and regulatory issues of Business to Business (B2B) sites are quite similar to Business to Consumer (B2C) sites. The only difference is that the costumer is either a company or just an average Joe consumer. If he/she/it is a victim of a scam, false ad or leaking of valuable information, then the only result is loss of customer or possible revenue for the business. We will write a custom essay sample on Business to Business vs Business to Consumer Sites or any similar topic only for you Order Now Rules governing online business differ from place to place so fraud is quite common on the online world. B2C web sites are about publicity, but B2B is often unmentioned because it is always in the background. Here we will look at the issues governing both web sites. It is important to take note that the ethical, legal and regulatory issues overlap or connect with each other. Ethical Since the boom of the Internet, ethics became very important online. Ethical issues in B2B sites deal with information about their companies and transactions they had. Ethics in this situation is very important. Sharing information about one’s company to another is unethical since it could be used by other companies against the company itself. Since the transactions had been done online one of the companies involved in the transaction could post the information about the transactions. The information posted could be virtually impossible to trace back to a company. Codes of ethics was developed to protect both parties. While on B2C sites, the issue is the privacy of the consumer. Not every consumer wants his name being advertised on web pages without his permission. For example, a famous artist bought an item over the net. Consequently, the company had his personal information since most of them require it. And the company posts his name as their customer. Then at that instant the famous artist became their endorser. But the privacy issue applies in both B2B and B2C sites. New technologies have emerged and these have impacts on the lives of consumers and businesses. Security and privacy become significant for the protection of both businesses and consumers. Anyone can post advertisements, unethical and illegal marketing and Ebusiness email scams that it is hard to determine who to trust online. For the most part, the participant’s ethics are set forth by ethical codes developed by international governing bodies which protect both parties. Legal Legal issues concerning B2C sites include copywriting and publishing. Libel can have bad implications if negative or defamatory articles were published about people and companies on other websites. Information must be fully researched before posting. Intellectual property rights should also be observed to prevent from any legal damages. Copyright infringements in both B2B and B2B websites should be avoided since this will affect the credibility of the websites and their relationship with the consumers or businesses. Only factual information should be posted. Before publishing anything, the web site must get permission first from the clients. Scams also have bad legal implications for the websites. They can be sued for publishing information that is incorrect or malicious. Both B2B and B2C sites should avoid money making scams. Identity theft, as well as Internet frauds in B2C sites will result to major problems. Moreover, if webmasters do unethical alterations in a clients web site, it will result to long lasting negative consequences for the business and for the client. This may urge clients to take legal action that may be harmful to the life of the B2C sites. Another area where B2B and B2C sites differ is on revealing trade secrets or intellectual property. Violation will only occur if an employee leaked information or sold it to a competitor. But unless a consumer invented or patented a product and was taken advantage of by a business, any statement saying that revealing or selling intellectual property will not apply here. Regulatory Regulations of B2B and B2C sites vary from state to state. Regulatory issues concerning B2B sites include activities which look into regulating the site. Since these sites post advertisements or pop-ups about their businesses, regulation must be observed so that only pop-ups of the business or company appear. The traffic of information is also regulated so that clients are not lost when they navigate these web sites. Regulations also play an important role to keep everything on track. B2C sites, on the other hand, also see regulation as important. Oftentimes, other companies post their ads on the sites of their competitors, thus attracting the consumers to visit and maybe try their services. This is stealing of customers, which is also an ethical and legal issue. Through regulation, this kind of situation can be prevented. Other regulatory issues involved include regulations on electronic, e-commerce, credit/cash policies, international trade, tariffs, privacy, digital media offers and security. REFERENCES Franz, Nora. (28 March 2006). Consumers: Beware of Online â€Å"Freebie† Scams, Including Magazine Subscriptions Ethics in Question for Online Businesses Offering Freebies. Warholic, James A. Importance of Ethics on the Internet. Warholic, james A. Internet Marketing B2B vs B2C Comparisons for the Twenty-First Century. How to cite Business to Business vs Business to Consumer Sites, Papers

Economics and Opportunity Cost free essay sample

Opportunity cost is the value of the next best alternative in a decision. Imagine that you have $150 to see a concert. You can either see Hot Stuff or you can see Good Times Band. Assume that you value Hot Stuffs concert at $225 and Good Times concert at $150. Both concerts cost $150 per ticket, but it would take you a couple of hours to drive to Hot Stuffs concert and you have to be in school (the next) morning for an exam. Good Times concert is right here in town. Explain how you would assess the opportunity cost of seeing Good Times in concert. What is the opportunity cost of going to Good Times concert? Develop a response that includes examples and evidence to support your ideas, and which clearly communicates the required message to your audience. Organize your response in a clear and logical manner as appropriate for the genre of writing. Use well-structured sentences, audience-appropriate language, and correct conventions of standard American English. _____________________________________________________________________________________ People face trade-offs daily. As humans, we make decisions that require trading off one action against another [Principle of Microeconomics. 2012. 4]. The process of giving up something we enjoy in order to gain another good has been part of our human characteristics from day one. As a society, we should make good decisions only if we understand that there are other available options that will benefit us [Principle of Microeconomics. 2012. 5]. By definition, opportunity cost is the cost of an alternative action that must be forgone in order to pursue a certain action. Opportunity cost is present anytime we must make choices. As rational thinkers, we prefer to choose actions that will not only maximize our time, but also benefits our future. Let us imagine this particular scenario†¦ My scheduled GRE date is tomorrow morning at 7:30 AM, yet I have the sudden itch to go to a concert tonight! I can either see the Hot Stuff at the MGM Hotel in Las Vegas or the Good Times Band at the House of Blues in Anaheim. Both tickets for both the bands are $150 per ticket – but one is in the state of Nevada, which is about 4 hours away (not including traffic), while one is less than 10 minutes away from my home. Though both bands cost the same, I value Hot Stuff’s concert at $225. I am debating on which two bands to invest my time in seeing, or even second thinking whether or not I should stay home and rest in preparation for my GRE exam in the morning. Marginal utility is a vital economic concept used to determine how much an item a consumer will buy. By definition, marginal utility is the additional satisfaction a consumer gains from consuming one more unit of a good or service. In my particular case, I am willing to pay a marginal utility of $225 per ticket, drive 4 hours to Las Vegas, and return to Anaheim once the concert is over around 1 AM. But does that make any sense for me to spend almost 12 hours, the night before my exam, attending a concert in another state? Absolutely not! Although the satisfaction of attending a concert I’ve been waiting several years to see will be spectacular, the amount of satisfaction that comes with resting well and earning a high GRE score will be much greater. Giving up my favorite band, Hot Stuff, would be the first off the list. A good nights’ rest is simply the next best alternative to dismiss the concert. The Good Times concert at the Anaheim House of Blues sounds very tempting because the venue is extremely close to my home. Similar to the next best alternative in the aforementioned, utilizing the night before my test to rest and study is the opportunity cost. Because I consider myself quite a rational person, I [must] systemically and purposely [do] the best [I can do] to achieve [my] objective, given the available opportunities [I am] faced with [Principle 3. 6]. By comparing the benefits and marginal costs of staying home, I am faced with a much larger economic benefit in my future due to my high score and acceptance to the school of my choice. I am reflecting a positive marginal change with my decision in selecting to choose to rest at home; a marginal change is a small incremental adjustment to an existing plan of action [Principle of Microeconomics. 2012. 6]. By spending my night at home reviewing my flashcards, I am demonstrating how well I am planning for my future. By comparing costs and benefits, I will be able to make a rational decision. My behavior changed when I realized my actions could possibly affect my GRE score and admissions into a prestigious program. In all, my decision to choose the next best alternative to stay home to rest and study will be driven by the marginal benefit exceeding the marginal cost [Principle of Microeconomics. 2012. 7]. The benefit of staying home to better prepare myself for my exam was much higher than spending a few hours at a concert and spending money – as I should be saving for graduate school. The next best alternative to both those possible actions will be to stay home. The intangible measure of my choice reflects implicit opportunity costs. Resting at home rather than expending my energy at the concerts has no currency value, therefore the implicit costs related to the forgone benefits are not easily accounted for. The cost of not being rested before my exam is enormous. I will be sacrificing my future education and career goal. While my decision reflects implicit opportunity cost, explicit costs are the cash or equivalent expenses for which I would pay to attend either concert. In conclusion, the opportunity cost for staying home is much higher than if I were to attend the concerts. The value for my bright future by earning more during my career and gratefulness to be educational activity counterbalances the lost concerts and enjoyment.