Fertilizers: Potassium and Compounds

Creating a liquid fertilizer Experiment Chemistry 1065 10/09/2012 Introduction The aim of this experiment was to create a liquid fertilizer containing Nitrogen, potassium and phosphorus; each element had to have 8% mass percentage. We were also required to add an additional element, magnesium and it mass percentage had to be 1. 5%. At the end of the experiment, the pH of our aqueous solution had to be between 6. 0 and 7. 0.As a group we predicted that we could not successfully create the liquid fertilizer with the compounds we were provided with, because some of the compounds would create a precipitate if mixed. As a result we decided that it would be take further experimentation of trying different combination of these compounds on small scale to help us successfully create the required fertilizer. This experiment is important because it is necessary to make a plant fertilizer that is environment friendly and that provides various plants with the nutrients they need to grow.This exp eriment was interesting because gave us the chance to see get in the perspective of the scientists who constantly keep working towards making the best possible fertilizers for plants. Recent attempts by scientists of making the ‘ideal fertilizer have failed because either the fertilizer is not environment friendly or it increases the birth-rate of agricultural pests. In this lab, we created several compound combinations to try and match the compounds in the required fertilizer.Some of our combinations worked, but some failed. We made adjustments to the original information provided to us in order to meet the standards of the required liquid fertilizer, and as a group we tried our best to indicate such adjustments throughout our lab reports so that the reader can be more informed about the experiment we did. . Experimental Because our prediction was that some of the provided compounds would not for an aqueous solution, we decided to try out some combinations on small scale to s ee how they reacted.The compounds we needed for these combinations were: Potassium carbonate, trisodium phosphate, potassium nitrate, ammonium carbonate, sodium phosphate, and sodium nitrate. We also needed some water to dissolve these compounds in. In order to perform a solubility test on the provided compounds we obtained a well plate, a spatula to add the solid compounds into the well plate, a beaker full of distilled water, a pipette to add water into the well plates containing two different compounds, and a stirring rod to stir the mixture.First using a spatula we took a small amount of K2CO3 and put in one of the wells on the well plate. Then we took a small sample of Na3PO4 and put it in the same well. Using a pipette we took 3ml of distilled water from the beaker and added it into the well containing K2CO3 and Na3PO4. The using a stirring rod, we continuously stirred the solution for 1 minute and we observed. Then we took small samples of K2Co3 and NH4Co3 and put them in a s econd well on the well plate. Then we added 3ml of water using a pipette. Using a stirring rod, we mixed the solution continuously for about a minute.Next we took small samples of NaNO3 and NaPO3 and put them in a third well on the well plate. We added some water using a pipette and stirred up the solution. Then we took samples of NaPO3 and KNO3 and put them in a fourth well in the well plate. We added 3 ml of water, stirred the solution and observed. Next we took samples of Na2PO3, K2CO3 and NaNO3 and put them in a fifth well. We added 3ml of water, constantly stirred the solution and observed. We then took samples of Na2PO3, K2CO3 and NaNO3 and put them in a sixth well plate.Then we added 3ml of water and constantly stirred the solution for a minute and observed. Through eliminating solutions that formed a precipitate we chose the solution containing, Na2PO3, K2CO3 and NaNO3 as the solution that could potentially be our liquid fertilizer because it contained nitrogen, phosphorus a nd potassium ions. Because we needed nitrogen, phosphorus and potassium to each have an 8% mass percentage in relation to the total solution, we calculated how much of each compound we needed so that the three required elements could have 8% mass percentage each in 10g of H2O.We calculate the amount of each compound needed by first figuring it in moles and then we converted it to grams. We replaced Na2PO3 with Na3PO4 because Na2PO3 was unavailable. After calculating how much of each compound we needed to make our fertilizer, we decided that we needed a beaker, a scale, weighing paper, pH probe, graduated cylinder, stirring rod, Magnesium and H2SO4 to neutralize our solution at the end. We started by weighing out 4. 23481g of Na3PO4, 0. 707g of K2CO3, and 5. 8221g NaNO3. Then we poured the weighed compounds into a beaker.We then measured 10ml of distilled water using a graduated cylinder. We then poured the 10ml water into the beaker containing our three compounds. Using a stirring r od we stirred the mixture for about three minutes. The compounds did not dissolve in water because the ratio of the compounds to the water could not allow the compounds to completely dissolve in the water. With instructions from our T. A we decided to divide the amount of all the compounds by 10. The new amounts of the compounds were: 0. 423481g of Na3PO4, 0. 0707g of K2CO3, and 0. 58221g NaNO3. We then weighed out these new amounts of compounds.We poured them into a new beaker and added 10 ml water. Using a stirring rod, we continuously stirred the solution until the compounds were completely dissolved. Next we got a pH probe to measure the pH of our solution. The pH of our solution needed to be between 6. 0 and 7. 0. We connected the loggerpro software to a laptop and we the pH collected was 12. 43. Since our fertilizer solution was a base we decided to neutralize it using an acid. The acid we chose to use was H2SO4. Using a pipette we added drops of H2SO4 to our fertilizer soluti on as we monitored the pH of our solution.It took 2. 4ml of H2SO4 to bring the pH of our liquid fertilizer to 6. 75. To make our liquid fertilizer complete we were required to add an additional element, magnesium such that it had a 5% mass percentage. We chose to use the compound magnesium nitrate because it contains a magnesium ion. We calculated that in order for magnesium to have a 5% mass percentage in the solution we needed 3. 05g of Mg (NO3)2. But because we had divided the other compounds in the solution by ten earlier, we had to divide the amount of Mg (NO3)2 paste to keep the same ratio.So after dividing the amount of magnesium needed by 10 we resulted with 0. 305g of Mg. We then weighed 0. 305g of Mg (NO3)2 on a scale and the poured it into the beaker containing our aqueous solution. Using a stirring rod we stirred up the solution until the Mg (NO3)2 was completely dissolved. We then finished the experiment by measuring the final pH of our solution which was 6. 7. Results Data 1 Compounds added to 10ml of water| Observations| KNO3 & NaPO3| When we mixed these two compounds in water, they formed a cloudy solution which turned clear after a while.There was some compound left at the bottom of the beaker and this was due to experimental error. | K2CO3 & NH4CO3| When we mixed these two compounds, they formed a cloudy mixture. One of the compounds looked suspended which meant it did not dissolve. | NaNO3 & K2CO3| When we mixed these two compounds, they both dissolved in the water although there was some compound particles left at the bottom of the beaker which was due to experimental error. | NaNO3 & NaPO3| When we mixed these two compounds, they formed a precipitate. NaPO3 & KNO3| When we mixed these two compounds, they did not dissolve in water, they formed a precipitate| Na2PO3, K2CO3 & NaNO3| When we mixed these three compounds in water, the completely dissolved| Data 2 Substance added to 10 ml of water| Observation| 4. 234g Na3PO4, 0. 707g K2CO3, and 5. 8221g NaNO3| Did not dissolve in water. The amount ratio of compounds was too big to dissolve. | 0. 423481g Na3PO4, 0. 0707g K2CO3, and 0. 58221g NaNO3| Completely dissolved in water and the pH of the resulting solution was 12. 3| 1 ml H2SO4| pH of solution dropped to 11. 14| 2ml H2SO4| pH of solution dropped to 7. 45| 2. 4ml H2SO4| pH dropped to 6. 7| 0. 03052 g Mg(NO3)2| Completely dissolved in water and the pH stayed at 6. 7| Calculations Amount of compounds needed. Note: We divided the final amount of the compound needed by 10 so that it would dissolve in water. What we need: 10g ? 8%= 0. 8 g N, 0. 8g P, 0. 8g K Element| Calculations| Amount of compound so that element has 8% mass percentage| Amount of compound so that element has 0. 8% mass percentage| Nitrogen| 0. g N3- ? (1 mol N2 / 14. 01g/mol N2)= 0. 057mol N20. 57mol N3- ? (101. 96 g/mol NaNO3) | 5. 8221g NaNo3| 0. 5221g NaNo3 | Potassium| 0. 4g K2+ ? (1 mol K2+ / 78. 2g/mol K)= 0. 005115 mol K2+0. 005115 mol K2+ ? (138 . 21 g/mol K2CO3) | . 707 g K2CO3 | 0. 0707g K2CO3| Phosphorus| 0. 8g P3- ? (1 mol P3-/30. 97g/mol P)= 0. 02583mol P3-0. 02583mol P3- ? (163. 94g/mol Na3PO4)| 4. 23481g Na3Po4| 0. 0423481g Na3Po4| Note: We used 0. 4g of Potassium because there are 2 potassium ions in K2CO3

Big Band Jazz

Across the world there are thousands of languages that we as people use to communicate with one another. Many of these languages have been developed out of others, therefore sharing similar dialects, accents, and in some cases even some words are very similar. Yet of all the languages that are spoken across the world, there is only one that is fluently spoken and understood on every continent, and that is the language of Music.Yet because this language is spoken in so many different parts of the world, in many cases the way it is spoken has a direct relation to when, ND where It Is spoken as well. This country has yielded many different types of music that have In turn, yielded different types of music. For example; from Bluegrass came modern country music, from Soul came RB and Neo-Soul, from Rock and Roll came alternative and punk rock. All of these different types of music are products of their surroundings at conception, but no other than Jazz could yield as dynamic and brilliant of a sound as Big Band Jazz.Following the rise of Dixieland Jazz in the sass was a new style performed by a large ensemble usually consisting of 10 or more players. These bands, called big bands, relied increasingly on saxophones instead of clarinets, and emphasized sectional playing. The overall Instrumentation was broken down Into three groups of instruments: brass which included trumpets and trombones, reed which included saxophones with players sometimes doubling on clarinet, and rhythm section which included the piano, bass, drums, guitar, and in later years, the vibes .Generally big band arrangements followed a standard form; the melody was played by the entire band In unison or harmony then the soloists would Improvise based on the songs elodea, style, and chord progression, and then the melody would be restated, sometimes in a varied or more elaborate way. The music performed by big bands was called swing, a type of music that people could dance to easily. It was performed in a triplet swing rhythm style. This energetic dance music was very popular for almost two decades, with the swing era extending through the mid sass. During this ti me, thousands of big bands played across the united States. They performed written arrangements of popular and Jazz songs, sometimes with a vocalist. Radio broadcasts spread Interest In big band music by bringing it into peoples homes. Ballrooms such as the Savoy and the Roseland in New York were extremely popular venues for hearing the latest big band sounds. Although often times they arent given credit, clarinetist Benny Goodman, trombonist Tommy Dorset, clarinetist and saxophonist Jimmy Dorset, trombonist and arranger Glenn Miller, clarinetist and saxophonist Woody Herman, pianist and composer Duke Elongating, were some of the pioneers of the Big Band sound.Although the emphasis in this style of music is mainly on instrumentalist, vocalist such as Billie Holiday, Ella Fitzgerald, Frank Sinatra, and Being Crosby often sung with many of these bands. Of these pioneers, none are as revered for contributing to the genre as William 1 OFF where he learned and became proficient at playing the piano. He began playing with professionals and ended up on a tour that had to go through Kansas City. It was there that Basis, and the rest of the musicians were stranded, and disbanded.After becoming acclimated to the Kansas City style, and play for with, and at different places and people, he started his own group. Count Basiss group became very popular for their rhythm section which was so tight that the soloist became known for their riffs. A riff is a short melody usually at a break, rest, or pause in the music. They are used to elaborate and fancy up the given melody of the piece. Inflections in the music such as his riffs shaped Basses sounds, and style. Another one of Big Bands pioneers who contributed greatly to the music, and especially to his times was Duke Elongating. Born Edward Kennedy Elongating and then later nicknamed Duke by one of his piano teachers, he like many other musicians darted learning and perfecting their craft at a young age. At the young age of seventeen he had dropped out of High School to completely dedicate himself to his music. After playing with and for people and musicians at different venues, he would eventually put together what seemed to him like the perfect group of players, and they called themselves the Washingtons (after Dukes birthplace; Washington D. C. Contrary to his recent failures at sustaining a sound the people liked with a group, the Washingtons were a hit, and became very popular. They had developed a Tyler all their own that had been labeled by the press as Jungle sound . From there he went on to form his orchestra which would end up playing regularly at the famous Cotton Club in New York City. Throughout his musical career he would compose, arrange, and rearrange literally thousands of works; some for solo instruments, some for bands and orchestras, and some for himself on the piano.He would be known for his style of writing for soloists inside of his groups, knowing their capabilities and strong points. He is also known for being able to adapt to the changing times unlike any of his contemporaries. Some of his most popular works include Dont get around much anymore, and the song that defined the era It dont mean a thing if it anti got that swing. Duke Elongating was the perfect example of how musicians then were Just as popular to the media and society as artists are today.He was kind, polite, and polished, and that added to his incredible musicianship made Duke Elongating one of the greatest and most favored musicians of his and all time. Although the Big Band/Swing era was dominated largely by instrumental Jazz, vocal Jazz would usher in new concepts as well. As early as 1926 the famous Louis Armstrong would drop the lyrics to one of his songs, and try out a new way of singing . This new way was a mixture of creating sounds and syllables and improvisational singing.This style would be called scat. Though Louis Armstrong invented this style, it is usually more closely associated, and didnt become popular until Ella Fitzgerald would begin to use it. Ella seemed to add dazzle to scatting and clearly defined it as a vocal improvisation using phonetic sounds similar to the instrumental sounds of Jazz . Other singers added to the early ideas of scat such as Sara Vaughn who was also key in bringing Jazz, and scat into the American home, with a number of radio and TV programs .Scatting would, like many other forms of jazz, become a favorite amongst musicians audiences, and helped shape Jazz into Through people like Count Basis and his riffs, Duke Elongating and his Jungle music, and Ella Fitzgerald and her scatting was Jazz defined during an era of turbulence in the country on many fronts. The Big Band Swing style was the dialect of language that Americans used to communicate with one another when we couldnt seem to use he English language efficiently.

Commissioning pneumatic trainer system Literature review

Commissioning pneumatic trainer system - Literature review Example Pneumatics is defined as the study of gases and air and the relationship between their volume, temperature and pressure (Venkannah, 2006). Pneumatics as a discipline deals with the mechanical properties of gases, e.g. pressure and density, and the application of these principles to solve various engineering problems using of compressed gas as the main source of power (Beater, 2007). The compressed gas that is most commonly used is air, and it normally contains energy stored in a potential state. When the compressed air expands, working energy is produced in the form of kinetic energy and pressure (Beater, 2007). 1.1.2 Hardware Pneumatic systems can be broken down into several levels representing the hardware components and the signal flow as shown below (Venkannah, 2006). The major components of a pneumatic system are; Compressor Check valve Accumulator Directional valve Actuator The assembly of a basic pneumatic system is as shown below. Key: A. Air Compressor B. Check Valve C. Accu mulator D. Directional Valve E. Actuator The following are discussed below. A. Compressor The air compressor unit is driven by a motor, and it acts as the source of air for the whole system (Dale & Fardo, 2009). It increases the pressure of air by compressing it so as to reduce its volume. This unit uses electrical power to generate mechanical force through the rotation of a motor. Once the air is compressed, it is stored in a receiving tank. The compressed air is then dispersed to the extra parts of the system at a high pressure when needed (Dale & Fardo, 2009). Pneumatic systems must also be equipped with air processing components that will condition the air before it is used. The conditioning involves filtering, regulating the temperature and lubrication (Dale & Fardo, 2009). These three sub units can be offered as one set known as the FRL Unit (Soundara, 2007). Filter unit It filters any foreign particles that may be contained in the compressed air. However, the size of the part icle that can be filtered depends on the type of filter used (Mitchell, 2000). Regulator unit It is used to uphold the desired pressure to the system’s control and consumption unit. Lubricating unit The lubricator supplies the compressed air with a film of oil and ensures that the air carries oil to the interior parts of both the control valves and the cylinder. However, the usage of lubricators is becoming less popular since nowadays manufacturers are making valves that do not require lubrication (Soundara, 2007). The filter and the regulator can be combined and used as a single or as individual units. B. Check valves These are one way valves that allow pressurized air to enter the pneumatic system and at the same time preventing backflow of the pressurized air to the compressor hence preventing loss of pressure. They help keep the pressurized air locked until it is released either manually or electrically after it reaches a certain amount of pressure. C. Accumulator It stor es compressed air and prevents any surges that may occur as a result of pressure. It usually has a larger volume than the air compressor. The large volume is of great significance as it helps dampen the pulsations of pressure as well as serve as a reserve to supply both large and brief volumes of air on demand. Accumulators also act as a medium for

Scholarly Project Essay Example | Topics and Well Written Essays - 750 words

Scholarly Project - Essay Example Such writings made it possible for future generation to know the culture of Native Americans as well as their contribution to American life. Therefore, it can be observed that the Native Americans made some significant contribution. The following are some of the most significant contributions of Native Americans to American life and culture namely; they made a significant role in maintaining the land by ensuring that the ecology was in good condition. For example, Native Americans could not destroy the land or kill an animal that they did not use instead they preserved it for the sake of future generation. Secondly, Native Americans made a significant contribution in agriculture; they grew food like potatoes, pepper, sunflower tomatoes, corns, sunflowers, to mention just but a few. It has been reported that Native Americans made a significant contribution prior the coming of European settlers in America. For example, they shared their food and farming method with the European settler s who came to settle in the Northern parts of America. Research indicates that most of the groups such as scouts and played in the present America were invented by the Native American. Example of those games includes; American soccer, tag of war-games to mention just but a few (Nabokov, 197-390). In above connection, Native Americans made a profound contribution in terms of the present administration system in America. It was reported that the idea of having a federal government in the United State was borrowed from the Native Americans where administrative power were distributed to the central government and states. Moreover, the Native American made a great contribution in the field of medicine, they used to each plants that are reached in Vitamin to prevent certain diseases like scurvy, they passed this idea to the Europeans who later passed it to the present American natives. Moreover,

Migration and the Children of Haiti Dissertation

Migration and the Children of Haiti - Dissertation Example In the current setting, migration has been occurring due to a variety of reasons, some of these being personal life choices, and other reasons based on economic necessity. Regardless of reasons however, its impact on the migrants has always been considered significant, bringing forth both negative and the positive impacts on these migrants. Among children, such impact has even been more significant because of their vulnerabilities and adjustment requirements. This paper shall discuss the impact of migration on the children of Haiti, including the social, economic, psychological, and educational burdens and benefits which migration has brought to these children. Body Throughout the years, millions of Haitians have migrated to other countries, mostly in North America, including the Dominican Republic, United States, Cuba, Mexico, Canada, and the Bahamas, France, Turkey, Jamaica, Venezuela, Brazil, and Puerto Rico. There are about 1.2 million Haitians in the US, about 200,000 in Canada, and one million in the Dominican Republic (Wassem, 2003, p. 1). Some of these Haitians have left their children in Haiti while they have left their home country to seek better fortunes. Their reasons for migrating have mostly revolved around political oppression, economic difficulties, limited opportunities, and similar socio-economic issues. Last year’s January 7.0 magnitude earthquake which devastated the country sent even more Haitians out of their homeland. In the US, the Department of Homeland Security was prompted to extend the Temporary Protected Status for Haitians arriving in the US prior to the earthquake (Zissis, 2010). After this declaration, the DHS also declared humanitarian parole to Haitian orphans, allowing them to enter the US under emergency conditions for the administration of medical care (Zissis, 2010). About 500 of these orphans were granted refuge in the US because of this parole; those with appropriate papers issued by the Haitian government were all owed to be put up for adoption. The disaster in Haiti has caused the widespread migration of many Haitians including their children. Such migration has impacted in various ways on these children. The impact of migration on children is seen in a variety of ways. It is seen in Haitian children migrating to another country or region, and it is also seen in children left behind. This paper shall consider both types of children. Among Haitian children migrating to other countries, most of the effects of migration is seen in terms of psychosocial issues, including education, health, birth registration, and risk for child labor and child trafficking (Bakker, Elings-Pels and Reis, 2009, p. 10). In relation to psychosocial issues, there is a risk for migrant Haitian children to feel alienated from other children, including adult children due to their migrant status. Moreover, the risk of insecurity and depression is also significant among these children. Social workers in Haiti express how t he children migrants often feel psychological distress due to their status as migrants in other countries (Bakker, et.al., 2009, p. 10). Their comparative conditions in relation to their deplorable economic conditions impact negatively on their overall wellbeing as children. Haitian children represent â€Å"a significant vulnerable group, in fact 8% of Haitian immigrants are under the age of 14 and 21% between 15 and 24† (Bakker, et.al., 2009, p. 10). In effect, they are in the age where they have not fully developed adequate means of independent living; as such, they are prompted to endure even more deplorable economic conditions. In relation to education, migrant children in Haiti are often made to face hardships due to language barriers, stigmatization, and ridicule among other native children, leading to

Quality control throughout the life cycle Assignment

Quality control throughout the life cycle - Assignment Example This may require measuring the project performance, modification to work breakdown structure and alternately revising the project management plan, particularly components of plan that include scope management plan, time management plan and cost management plans. Techniques like fast tracking would be one of our major option while planning for the schedule management. Also a number of risks may need to be reviewed including regulatory requirements to procurements and additional resource allocation. Further, effective implementation of a change control system to analyze and accept the changed scope for approval would also be crucial. While managing the triple constraints of scope, time and cost, it is equally essential to effectively manage the quality of the project outcome. According to Sanghera (2010), controlling the quality is a critical to the project management requirement effective mitigation of the project risks. This suggests reviewing the quality management plan and risk management plan to complement the additional scope. Mulcahy (2011) highlights the use of seven basic tools of quality including Cause and effect diagram, Flowchart, Histogram, Pareto chart, Run chart, Scatter diagram, Control chart to monitor and control the project quality. In project with change in scope, a mix of following quality tools is recommended. Flow Charts. Flow Charts helps to identify the source of an existing or potential quality problem in the project and develop approaches to resolving these problems (PMBOK 2008). It is a graphical representation of all the project processes showing activities, their sequence and decision making points. In a construction project with additional scope having a same time bar, flow charts would be used to review the interaction of all activities and analyze any potential problem especially in case of fast tracking. A major merit of flow charts is to consolidate procedures and processes, for

Globalisation Essay Example | Topics and Well Written Essays - 2750 words - 1

Globalisation - Essay Example There are a number of factors that contribute to the existence of international business. The first is the degree of demand for a product across the world. The second factor focus on diversity in tastes and preferences and buying behaviour of consumers from in both the mother country and other countries. For instance, there has been an increase in the market of organic products all over the world in past years. Therefore, companies that engage in production of organic products will have a ready market all over the world. The third one is the removal of boarder barriers, such as import and export taxes, flight barring, and currency risks. However, transaction of business internationally has an impact on risks facing these businesses and in management of those risks. It is a fact that every business has risks involved in its operation. However, unlike local businesses where the business accountant or lawyer knows the risks to expect the global market is more complex and complicated in those different countries have different business environment. For example, a business in an industrialised county does not face similar risks and challenges in managing risks compared to those that a business in a developed country would face (Mclvor, 2000). According to a survey conducted by AON Company (2011), some of the risks that an international business would face are economic delays, regulatory changes, business interruptions, high completion, price risks, reputations damage, and cash flow risk, failure in supply chain, third party liability, and failure to retain the top talent. These risks are influence by the political diversities, cultural differences, legal issues, economic and financial issues, and differences definition of risks. In managing these risks, most international businesses prefer insurance despite the alternative methods of risk transfer and financing. There are a number of factors that would influence a business to opt insurance as part of their risk fina ncing strategy, these includes authorisation, coordinated global insurance programme, compulsory insurances, taxation issues, the condition of local insurance market, and influences of reinsurers. Most international businesses use captives insurance in purchasing and managing their insurance portfolio. Globalisation Globalisation is a terminology used to describe the interactions and integrations amongst government, companies and people from different countries. In business, globalisation is into two parts which include globalisation of the market and globalisation of the product. Globalisation in the market is where distinct markets from countries all over the world merge to form a global market. There a number of factors influencing globalisation of the market. The first one is falling of border barriers whereby businesses are free to conduct business transactions across the borders. The second is striving to satisfy the taste and preferences of the consumers worldwide. For exampl e, smart phone’s demand in the world has increased tremendously over the last few years. Therefore, forces of demand have led the smart phone company to become an international company. The last one is standardisation of product such that the products are acceptable worldwide. An excellent example of a company whose product meets the global standards is Coca-Coca Company (vogt, 2012). Production, packaging and distribution of Coca-Coca Company products allow it to fit in the global market. Globalisation of products occurs when a company from a developed country establish a production plants and start producing in a developing country. The developing countries mostly offer cheap labour, land and low start up cost. For example, outsourcing of cheap labour and technological innovations are becoming global