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Source of error in the medical laboratory
Chemistry 101 lab
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Analysis of Aspirin Tablets Aim --- To discover the percentage of acetylsalicylic acid in a sample of aspirin tablets. ----------------------------------------------------------------- In order to do this, the amount of moles that react with the sodium hydroxide must be known. This is achieved by using the method of back titration. In this, the amount of moles in the sodium hydroxide solution after it has been reacted with the aspirin is found using titration, and then compared with the amount of moles it had without the aspirin being added. The difference in moles is the number of moles of sodium hydroxide that reacted with the aspirin, and therefore the number of moles of …show more content…
Background Information Aspirin is an analgesic (pain relieving) and an antipyretic drug (a drug that lowers body temperature). The main constituent of aspirin is 2 - ethanoythydroxybenzoic acid, also known as acetylsalicyclic acid (shown below right). It was originally made from just salicylic acid (which is found in the bark of a willow tree) when used by the Ancient Greeks to counter fever and pain, but its bitterness and tendency to irritate the stomach caused problems. These were resolved by the German chemist Felix Hoffman, who made the acetyl derivative of salicylic acid in the …show more content…
Normal water will not do because of the impurities in it. · Methyl Orange indicator - The colour of this indicates when the sodium hydroxide has been neutralised by the hydrochloric acid. · Conical Flask - This is used to react the aspirin tablets with the sodium hydroxide. It is more appropriate to use as the shape of it makes it less likely that any should spill out. · Burette - This is used to add the hydrochloric acid to the sodium hydroxide. It makes the results as accurate as possible, as it allows the hydrochloric acid to be added drop by drop when the sodium hydroxide is close to neutralising. · Burette Stand - This holds the burette steady in place. · Funnel - This allows hydrochloric acid to be poured into the burette so none is spilt. · Pipette - This is used to accurately draw out the correct amount of a substance from a solution. · Safety Filler - This is used to draw the substance up the pipette
Attention: The commercial grabs the viewers’ attention because the viewer will want to know which product works faster to remove unwanted stains. It also uses music and a little humor.
As proton pump inhibitors (PPIs) Omeprazole and Lansoprazole are effective therapeutic agents for Peptic ulcers. But which one is more effective as a PPI and highly useful for peptic ulcers disease. The basis of the distinction lies in the pharmacological safety and efficacy of each PPI, which is assessed in this paper in a head to head comparison. After obtaining the relevant literature from Database PubMed and Proquest, it is sufficient to conclude that Lansoprazole proved to be a more effective and safe than Omeprazole.
The American chestnut was not only an important food source for almost all living organisms of the Eastern, North America, but it was very important in providing housing and furniture and numerous other wooden necessities. The tree possessed rot resistant properties and strait grained wood which were valuable in buildings and many other applications. Its enormous trunk rose one-hundred feet into the canopy of the forest. Diameters of five feet have been recorded and many photos of the tree show greater trunk girths. The tree was able to produce its eatable fruit within seven years of germination. It was said to be truly treasured by early Americans.
Both of them researched the drug while working for Bayer and they are credited with actually naming it "aspirin".
We were then to make a base solution of 0.7 M NaOH. In order to standardize
Fishing, using natural curves in trees to make boomerangs, use ash and bark infusions to treat skin disorders and sores, used materials such as fish hooks made from shells and the hunting and gathering of mud crabs, snakes and lizards.
Barnett, J. R. (2004). Langenheim, J.H. Plant resins: chemistry, evolution, ecology and ethnobotany. Annals Of Botany, 93(6), 784-785. doi:10.1093/aob/mch103
Aspirin contains the substance acetylsalicylic acid (ASA), which can relieve inflammation, fever, pain, and known as a “blood thinner”. Aspirin was not officially trademarked until March 6, 1899 when the Imperial Office of Berlin made it official. It has been used for the last 110 years, but its natural form, salicylic acid has been around for thousands by Egyptians, Greeks, and Romans. Aspirin is available in over 80 countries and known as the best non-prescription drug. The most common use of aspirin is to cure headaches and use it as a pain reliever, but aspirin is known to prevent heart attack and strokes. It was first proposed in 1940, but wasn’t confirmed until 1970 when doctors would recommend taking aspirin daily [1].
In the late 1800’s it was discovered that papa-amino-phenol, could reduce fever, but the drug was too toxic to use. A less toxic extract called phenacetin was later found to be just as effective but also had pain-relieving properties. In 1949, it was learned that phenacetin was metabolized into an active but also less toxic drug, acetaminophen. Since then, acetaminophen has been sold under many over the counter brand names, most popular being Tylenol.
extracted from the stem and used to make rope, stout fabrics, paper, fuel, food, plastic, composite
If someone is trying to invoke spirits, it’s popular to use willow with sandalwood to do so. If the willow is carried, it can assist with bravery and help a person overcome the fear of death. It is traditional for besom’s to be made of an ash handle, birch twigs and bound with a willow branch. Another common magickal use of willow is for the use in wands and it’s perfect for connecting with intuition, or to help be inspired, and can even help with divination. There is an old myth about the willow tree, that if you throw your shoe into the tree on New Year’s Eve, and the show stays you’ll be married in the upcoming year.
Tylenol Case Study The discipline of public relations is a modern profession which has been in existence for only close to a century; however, it has already taken an important role in the fields of business, government, entertainment and non-profit organizations including educational institutions and healthcare organizations. Public relations professionals are required to have excellent organizational, interpersonal, and communication skills and have the ability to persuade the public. It is imperative for PR professionals to effectively communicate with the public in order to establish and maintain a positive relationship. Furthermore, public relations professionals must have the ability to work under pressure and effectively manage crisis, which may have a detrimental effect on the company and the public it serves.
The active ingredient in most painkillers is “acetaminophen and ibuprofen” (“Pain Relievers and Fever Reducers”).... ... middle of paper ... ... Web.
The thing I did best today was giving out my medications and assessing my patients. Scanning my patient’s bands and being able to give them their medications PO and IM was a great feeling. Also when my nurse went around in the morning assessing her patients I did the same thing. listening to their lungs, heart, bowel sounds, feeling pulses all over the body. Most important of all checking the patients level of consciousness. Later in the day I had a patient who lost one of there pulses in the leg, so it was a good thing we assessed her when we did.
Prescription drugs prices are becoming a huge barrier for many patients. The high cost issue affects different kinds of groups such as people living under low-income. (Gellad et al., 2009) Even though many low-income people receives coverage through government programs and also obtain many drug benefits, when it comes to people who are not covered, they are the ones that are more likely to be affected by this issue (Gellad et al., 2009). People who are not covered would have to pay the full price that is charged by the pharmacies (Gellad et al., 2009). Due to the discounts that are made by insurance companies, customers who are paying by cash are charged way higher prices for their medications than compared to insured counterparts (Gellad et