Green to Red Color Change Christmas Chemistry Demo

Color-change demonstrations are classic fare for the chemistry classroom. The most common color change reaction may be the Blue Bottle (blue-clear-blue) chemistry demonstration and the Briggs-Rauscher oscillating clock (clear-amber-blue), but if you use different indicators you can get color-change reactions to suit just about any occasion. For example, you can perform a green-red-green color change reaction for a bit of Christmas chemistry. This color change demonstration uses the indigo carmine indicator. Christmas Color Change Demo Materials One of best parts of this demonstration is that you dont need very many ingredients: water (distilled is best, but you can use tap water if your pH is close to neutral)15 grams glucose7.5 grams sodium hydroxideindigo carmine indicatorbeakers or other clear containers Perform the Indigo Carmine Indicator Demo Prepare a 750 ml aqueous solution with 15 g glucose (solution A) and a 250 ml aqueous solution with 7.5 g sodium hydroxide (solution B).Warm solution A to around body temperature (98-100 °F).Add a pinch of indigo carmine, the disodium salt of indigo-5,5-disulphonic acid, to solution A. A pinch is enough indicator to make solution A visibly blue.Pour solution B into solution A. This will change the color from blue → green. Over time, this color will change from green → red/golden yellow.Pour this solution into an empty beaker, from a height of ~60 cm. Vigorous pouring from a height is essential in order to dissolve oxygen from the air into the solution. This should return the color to green.Once again, the color will return to red/golden yellow. The demonstration may be repeated several times. How Indigo Carmine Works Indigo carmine, also known as  5,5-indigodisulfonic acid sodium salt,  indigotine,  FDC Blue #2), has the  chemical formula is  C16H8N2Na2O8S2. It is used as a food coloring agent and as  a pH indicator. For chemistry, the purple salt is typically prepared as a 0.2% aqueous solution. Under these conditions, the solution is blue at pH 11.4 and yellow at pH 13.0. The molecule may also be used as a redox indicator, since it turns yellow when it is reduced. Other colors may be produced, depending on the specific reaction. Other uses of indigo carmine include dissolved ozone detection, as a dye for foods and medications, to detect amniotic fluid leaks in obstetrics, and as an intravenous dye to map the urinary tract. Health and Safety Information Indigo carmine may be harmful if inhaled. Avoid contact with the eyes or skin, which can cause irritation. Sodium hydroxide is a strong base that can cause irritation and burns. So, wear use care and wear gloves, a lab coat, and goggles setting up the demonstration. The solution may be safely disposed of down the drain, with running water.

Unethical Trade Is A Strong Feeling Of Dislike Or Disgust...

Many trades are considered repugnantfootnote{Oxfod dictionary defines repugnance as a strong feeling of dislike or disgust about something.} citep{Roth2006}. The best example of repugnant trade is organ donation in the United States where paying the organ donors is illegal. This leads to efficiency losses, as over 10,000 people die every year while on the wait list for organ transplant citep{Julio2015}. Social, demographic, geographic and other factors are involved in rendering some trades more repugnant than others for different communities, ethnicities and countries. In this paper we study how age, gender, education, employment, ethnic, religious and political backgrounds affect attitudes towards one seemingly repugnant trade i.e. payment to kidney donors. justify According to the National Kidney Foundation there are currently 123,193footnote{ Organ Procurement and Transplantation Network (OPTN) of the United States} people waiting for an organ transplant in United States of Ameri ca. Out of these people about 101,662 are waiting for a kidney transplant. The average waiting time for a person to receive a kidney transplant is roughly around 3.6 years. About 12 people die each day because they could not receive a transplant. And 3000 new patients are added to the waiting list each monthfootnote{https://www.kidney.org}. The need of the hour is to reduce this waiting time, which can happen only with increase in number of donations. However, getting a kidney transplant isShow MoreRelatedStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesEnvironment 22 †¢ Improving Ethical Behavior 22 Coming Attractions: Developing an OB Model 23 An Overview 23 †¢ Inputs 24 †¢ Processes 25 †¢ Outcomes 25 Summary and Implications for Managers 30 S A L Self-Assessment Library How Much Do I Know About Organizational Behavior? 4 Myth or Science? â€Å"Most Acts of Workplace Bullying Are Men Attacking Women† 12 An Ethical Choice Can You Learn from Failure? 24 glOBalization! Does National Culture Affect Organizational Practices? 30 Point/Counterpoint LostRead MoreFundamentals of Hrm263904 Words   |  1056 PagesLearning an HRM Skill: Writing a Job Advertisement 152 Chapter 6 Recruiting Introduction 134 132 Enhancing Your Communication Skills 152 Learning Outcomes 132 Recruiting Goals 134 Factors That Affect Recruiting Efforts 134 DID YOU KNOW?: Something for Everyone 135 Constraints on Recruiting Efforts 135 Organizational Image 135 Job Attractiveness 136 Internal Organizational Policies 136 Government Influence 136 Recruiting Costs 136 Chapter 7 Foundations of Selection 154 Learning Outcomes

Transform Business Extraordinary Encounter -Myassignmenthelp.Com

Question: Discuss About The Transform Business Extraordinary Encounter? Answer: Introduction In the era of mass manufacturing and marketing, the primary purpose of a business relies on building a customer desire in order to earn a customer. In other words, the role of a business is to manufacture products which would not only meet the desires of the consumers but also to produce the desires that the product will accomplish along with generating revenue for stakeholders. The thesis statement of this argumentative essay will evaluate the major objective and purpose of a business enterprise which lies on customer satisfaction and retention. A consumer is generally considered as an individual who invests on a business to obtain products and services. The word user is labelled to the person who accesses and utilizes the products and services without any direct payment of the product. It must be noted that the primary function of marketing is to exert a pull on the prospect. There lies a specific reason behind the establishment of an organization. According to Peter Drucker, renowned marketing consultant, foundation of any business depends on the customers who further help in its sustainability. Entrepreneurs consider business as a fundamental part of themselves. Business owners often fail to identify the role of the business must function in the greater domain of ecosystem and thus the adaption is essential to flourish (Drucker, 2013). The society produces capital resources to the production enterprise so that business can offer its products to its customers. Strategic leaders of the business emphasize in exploration of i nnovation and improved methods to address target goals, customer requirements and expectations. Strategic leaders focus on new opportunities and chances to draw investors. The objectives primarily centre to the ways in which strategic leaders can improve the association of customers and stakeholders and further improve customer satisfaction and desires (Clarke, 2013). Customer satisfaction has a critical role to play in recent times; it is generally considered as temporary. The desires and expectations of customers tend to evolve very often which sometimes causes risks to businesses. Thus, strategic leaders must plan and implement strategies in order to produce the most effective outcomes of the business. Customer satisfaction and experience is regarded as provisions to the achievements of the business. Customer satisfaction and pleasure is considered to be significant to a business as it offers a structure to the entrepreneurs to evaluate and enhance their business performance. In an economical and competitive market domain, businesses struggle to gather customer satisfaction, which is regarded as a key factor to distinguish the performances amongst competitors. Accenture reportedly identified that product price is not the primary cause for customer churn (Cameron, 2013). The cause behind customer agitation predominantly lied on the poor and reduced consumer service on the whole. Customer contentment can further be executed to condense customer churn. With the measurement and evaluating consumer satisfaction, a business enterprise can introduce unique approaches and strategies to enhance the quality of customer facilities. Consumer satisfaction has a vital role to play in the amount of revenue the company generates for its production. The key to effective business production lies in understanding the significance of consumer lifetime value (CLV). If a business improves the CLV, the business owner increases its profit generation (Wolfe, 2011). The key role of a senior leader of an organization is to interact and create visualization and further provide assistance to strategic planning. Leaders who have effectively implemented strategic plans by connecting teams of all levels have led to a productive business outcome. Fundamental responsibilities of strategic leaders or senior management team are to evaluate and challenge the strategic direction and other vital components of the plan. One of the common methods of internally analyzing and further reconsider the current position of the organization and future outcomes by implementing SWOT analysis (Crane et al., 2014).This analysis engages in identifying strengths and potentialities as well as fundamental capabilit ies in commodities, resources as well as customers. However few critics have argued that a fundamental factor of a business is its workforce rather than its customers. The satisfaction of customers is immensely dependable on the employees of the company. The aspect which makes a business distinguishable from its competitors is the performance of the workforce. This has led companies to spend millions on the recruitment, management as well as administrative expenses of the employees. It is believed that a business can only gather customers and further gain their satisfaction is through the contentment level of the workforce of the business (Pantouvakis Bouranta, 2013). Thus, employee satisfaction plays a more crucial role than customer gratification. In order to leverage the employee value, strategic leaders must initiate strategies such as rewards and recognition to acknowledge the employees and further enhance company morale, productivity and thus generate profits. Thus, from the above discussion it can be concluded that though critics have claimed workforce as a valuable asset of their business, the primary purpose and intention of any business depends on retaining customers, enhance their level of satisfaction through excellent products and further earn revenues. References Cameron, K. (2013).Practicing positive leadership: Tools and techniques that create extraordinary results. Berrett-Koehler Publishers. Clarke, H. C. L. (2013). Deciding How to Decide.Harvard Business Review, Cambridge. Crane, A., Palazzo, G., Spence, L. J., Matten, D. (2014). Contesting the value of creating shared value.California management review,56(2), 130-153. Drucker, P. (2013).People and performance. Routledge. Pantouvakis, A., Bouranta, N. (2013). The interrelationship between service features, job satisfaction and customer satisfaction: Evidence from the transport sector.The TQM Journal,25(2), 186-201. Wolfe, N. (2011).The Living Organization: Transforming Business to Create Extraordinary Results. Encounter. Quantum Leaders Publishing.

Miocene Epoch Essay Example

Miocene Epoch Essay Today is an ordinary day. In fact, it is so ordinary that you’ve decided to board your Cybernetics Time Machine Mark III headed for the Miocene epoch. Disembarking from your cozy Mark III den, you realize you’ve landed right in the middle of the ocean. Through the glass bottom of the machine, you see a gigantic fish and realize that it looks very much like a sperm whale. That’s because it is, the Orycterocetus to be exact.1 As the Mark III heads for land, you spot another marine creature. It is important to note, at this time, the interlocking set of outward-jutting teeth found on this seven foot whale. Adventurer, meet the Prosqualodon.2 Consider yourself lucky to have spotted two of the most interesting whales in this epoch, now steer your time-machine-turned-boat to shore. As you near the beach, you see an assortment of animals whose scare-factor range from â€Å"no sweat† to â€Å"good thing I’m in the Mark III†. You spot a Hemipristis serra and two Carcharhinus which you simply noted down as â€Å"shark†.   In your notes, you also jot down sightings of a crocodile, Crocodylidae, a crab, Portunus oblongus, and a turtle, Podocnemis.4 Quickly clear the beach to avoid any crocodiles that might be lurking nearby. Walking through a dense forest of Gingko trees, you hear an unfamiliar sound. 5 Directly in front of you, you see a horse with three toes, a small dwarf-like horse covered with a short brown spotted pelt. You are looking now, traveler, at an Archaeohippus blackbergi.5 Don’t panic. It is harmless. Be careful of the low-hanging branches as you continue on your tour. These ar e the territories of the marsupial lions, especially of the most specialized carnivore to have roamed the Miocene epoch, the Thylacoleo carnifex and its fearsome set of carnassial teeth.6 We will write a custom essay sample on Miocene Epoch specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Miocene Epoch specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Miocene Epoch specifically for you FOR ONLY $16.38 $13.9/page Hire Writer A Tour of the Barremian On a sight-seeing mission in the Barremian, a novice time-traveller such as yourself should be very careful. This is one of the most dangerous eras to have visited; dangerous but well worth the risk. Fish around in your pocket for the checklist the time travel agent made for you, Remember, whatever happens, don’t panic. On land à ¼Ã‚   Couperites, Anacostia, Appomattoxia: angiosperms. Make sure to pick a good number of fruit. These make good jam according to the residents of the Barremian period. à ¼Ã‚   Prokennalestes abramovi: a small mammal with a skull size of about 35 mm. It isn’t threatening but is a definite must- see in your stop. It is the oldest known eutherian mammal.7 à ¼Ã‚   Valdoraptor, Acrocanthosaurus. Predatory. Keep away if you want to live. à ¼Ã‚   Neovenator: a popular Saurischian that has earned it’s own place in the checklist. 7.5 meters in length, pray it spots an Iguanadon to feast on before it spots you. à ¼Ã‚   Carcharodontosaurus: Ever hear of the T-Rex? Well, the Carcharodontosaurus is larger and has large, sharp, knife-like teeth. You are adviced to appreciate it from a distance. On water à ¼Ã‚   Lac des Bois, Canada: one of the best snorkeling spots where you can spot non life-threatening small-sized fish, such as Ichthyodectes, Osmeroides, Enchodus, and Cimolichthys.8 à ¼Ã‚   Cimolichthys nepaholic: a medium-sized freshwater fish. Avoid at all costs. Cimolichthys is predatory. Think two meter Cretaceous baraccuda.9 à ¼Ã‚   Cretoxyrhina mantelli: a 6-7.5 meter shark. Pray you never spot this one. It might be the largest shark you could possibly meet in this era. Sweating it out in the Carboniferous Deciding no vacation is complete without a tan to sport in front of friends back home, you head to the Lower Carboniferous era 320 million years ago. Stepping out of the Mark III, you decide perhaps a vacation to a place resembling the area around the Dead Sea wasn’t such a good idea. It is hot, humid, and you just keep remembering coal for some odd reason. The flora, you notice, is largely uniform. You take note of the Lepidodendropsis, Triphyllopteris and Rhacopteris which are numerous and which you will later on realize, after going the rounds across the various continents, are well represented everywhere.10 The swamps you see around you have just recently developed. These are now teeming with new life that you would do best to discover yourself. The first land snails have appeared as well as dragonflies and other insects whose wings are not capable of folding back. It won’t be hard for you to recognize the numerous spiders, millipedes and scorpions swarming about. Your trip won’t be complete without a visit to Horton Bluff, one of the most popular tourist spots of this era. A quick swim would give you a view of the Letognathus, a predatory lobe-finned fish with tusks.11 You might also be lucky enough to spot an Eryops. Be careful. It’s 6 feet long with strong jaws. If cornered, run to shore. The Eryops is frightening only in the water. On land, its short legs make it a slow opponent. After risking life and limb swimming in Horton Bluff, you can spend the rest of your day collecting trilobites, one of the more famous arthropods during the Carboniferous. Make sure to wash your hands afterwards as some of these live as scavengers or filter feeders. Last Stop: Paleozoic Era At the end of your mini-vacation through time, the Paleozoic era will provide you with the leisurely viewing of the environment you have been dreaming of ever since the Miocene epoch. Begin with a scuba diving adventure in Guizhou Province in China. Discover the first lichen-like plants to have evolved, Parafunaria sinensis Yang. Take a good look at the Parafunaria. This may be the only plant you get to see here because the early Paleozoic is mostly desert and barren land. Because the land is uninhabited, the dive you took at Guizho Province will have to continue on if you want to be able to see more of the fauna during the Paleozoic. Take a quick detour to the zoological hotspot, the Burgess Shale. Observe the different kinds of arthropods teeming in this biodiversity bed. Also take note of the worms, crinoids, and sea cucumbers struggling to stake a claim in the environment. Shelled organisms were many and included Scenella and the brachiopods Lingulella and Diraphora. Take a few samples of Morania confluens, a type of algae, to take back as souvenirs. Don’t be too quick to leave after collecting your algae. Scan the surroundings for polychaete worms, Burgessoechaeta, Burgessa, and Marella, that usually live around Morania. If you’re lucky, you’ll spot a rare type of algae, Marpolia spissa, which will make an even better souvenir. There are also two types of animals that are usually spotted around Marpolia, the Eldonia and Wiwaxia. It is interesting to take note that the two algae and the fauna that accompany them survive in complete isolation of the other system. The Mark III blares out a warning and you hurriedly head back for home hoping tomorrow will be another ordinary day.