Isolation of Caffeine from Tea (12A) Introduction When a person drinks tea or coffee‚ it is not pure caffeine. It also has other natural substances. The purpose of this lab was to isolate caffeine from tea leaves. The methylene chloride removed nearly pure caffeine from the basic tea solution. Caffeine is a white‚ crystalline‚ bitter alkaloid‚ C8H10N4O2 ‚ usually derived from coffee or tea. Caffeine is used in medicine chiefly as a nervous system stimulant. Caffeine is used by humans to ward off
Premium Caffeine Tea Coffee
Alcohol consumption is the most major causative factor which contributes to liver cirrhosis (Farrell& Dempsey 2011‚ p.1166). Therefore‚ it is significant to the nurse to have a good knowledge of test result and prescription medication relating to alcoholic cirrhosis. This assignment will explore a case study of Mr Chocolate‚ who presented to the hospital with sign and symptom of alcoholic cirrhosis. It will contain a brief describe about how cirrhosis result in Mr Chocolate’s signs and symptoms
Premium Liver Bilirubin
ALCOHOL: SHOULD IT BE ABOLISHED? Malaysia is known as the tenth largest consumer of alcohol in the world and very few studies have been done to find the accurate magnitude of the problems caused by this consumption. Although not many studies have been carried‚ the facts and figures show that it is increasing each year. Malaysians spend about USD$500 million on alcohol yearly and among the drinking population‚ the Malaysian Indians who are 8 per cent of the country’s population are
Free Alcoholic beverage Alcohol
Alcohol Alcohol can be traced back to ancient times when Egyptians used beer and wine for ritual and celebratory purposes (Hanson 1995). Osiris‚ the god of wine‚ was praised throughout the entire land of Egypt. The Egyptians believed that this important god also invented beer‚ a beverage that was considered a necessity of life and was brewed in the home. Both beer and wine were created for and sacrificed to the gods. Fast-forward 12‚000 years and the variety of alcohol has become so numerous‚ people
Free Alcoholism Addiction Drinking culture
the product caffeine. Thesis Statement: there are numerous side effects and health problems associated with caffeine. Caffeine should not be consumed to “energize”. Many often turn to caffeine to help‚ and doing so will lead you to become addicted to the substance much like a drug and will affect many aspects of your everyday life. Introduction: I. How many of you have used caffeine related products to boost yourself in the morning or before a major task for the day? II. Caffeine seems like
Premium Caffeine Coffee Energy drink
Properties of Alcohols and Phenols Experiment #3 Objectives: To observe the solubility of alcohols relative to their chemical structure‚ to perform chemical tests to distinguish primary‚ secondary and tertiary alcohols‚ and a color test for phenol. Introduction The general formula of an alcohol is ROH in which the R is an aliphatic hydrocarbon group. Alcohols may be looked upon as derivatives of water‚ HOH. One hydrogen of water is substituted by an alkyl group‚ R. Like water‚ alcohols show hydrogen
Premium Alcohol
Introduction A. Attention Getter: If you drink some kind of caffeine on a daily basis or close to that often‚ please raise your hand. Those you without your hands raised make up a rare percentage of today’s Americans. An article published in the Chicago Tribune on October 19‚ 2011 by Julie Deardorff‚ stated that nearly 90% of Americans drink coffee on a regular basis. B. Relevance Statement: When asked if you drank coffee or another source of caffeine regularly‚ the majority of the class raised their hand
Premium Coffee Caffeine Drink
Excessive alcohol misuse in the community and the social and economic consequences that result.’ Alcohol misuse can be defined as "the use of alcohol such as to damage or threaten to damage the health or social adjustment of the user‚ or those persons directly affected by his or her drinking." (http://hcna.radcliffe-oxford.com/alcoholmisuse.htm). Alcohol misuse has great effects on the community as it is associated with poor health‚ crime‚ disorder and social and economic harms. The UK has
Premium Alcoholism Domestic violence Cirrhosis
Alcohol and Driving Alcohol is a depressant that affects your vision‚ coordination‚ reaction time‚ multitasking ability‚ judgment‚ and decision-making. How can you drive safely if you can’t see‚ think‚ and move around well and react quickly? Alcohol affects your ability to identify dangerous situations and make good decisions when you know danger is ahead‚ and it slows your reaction time even if you do make a good decision. In addition‚ having alcohol in the body while you’re driving messes up your
Premium Alcohol Hypertension Heart
12). Caffeine acts in the body by getting absorbed in the body through the cells relatively fast‚ after which it is expelled through the liver. The effects are that caffeine being a stimulant in the body‚ a short while after consumption with an increase in wakefulness. When taken in large amounts‚ it causes physical effects like irritability‚ insomnia and even restlessness. 13) + 14) Caffeine passes through the body membranes from the first sip‚ entering your blood stream through the lining of your
Premium Caffeine