The Effect of the Molecular Weight to the Rate of Diffusion - Free Essay Example

Sample details Pages: 1 Words: 329 Downloads: 1 Date added: 2017/09/14 Category Advertising Essay Did you like this example? The effect of the molecular weight to the rate of diffusion Based on the experiments, sd f f f f s wrefwe fwe rfwjv rwefhnw fwer fwe fwef fwe fwe fwe fwef wef w fwe fwe From Wikipedia, the free encyclopedia Jump to: navigation, search Sucrose is the organic compound commonly known as table sugar and sometimes called saccharose. This white, odorless, crystalline powder has a pleasing, sweet taste. It is best known for its role in human nutrition. The molecule is a disaccharide derived from glucose and fructose with the molecular formula C12H22O11. About 150,000,000 tonnes are produced annually. [2] Structural ? -D-fructofuranosyl-(21)-? -D-glucopyranoside In sucrose, the component glucose and fructose are linked via an ether bond between C1 on the glucosyl subunit and C2 on the fructosyl unit. The bond is called a glycosidic linkage. Glucose exists predominantly as two isomeric pyranoses (? and ? ), but only one of these forms the links to the fructose. Fructose itself also exists as a mixture of forms, each of which has ? and ? somers, but again only one particular isomer links to the glucosyl unit. What is notable about sucrose is that unlike most disaccharides, the glycosidic bond is formed between the reducing ends of both glucose and fructose, and not between the reducing end of one and the nonreducing end of the other. This linkage inhibits further bonding to other saccharide units. Since it contains no anomeric hydroxyl groups, it is classified as a nonreducing sugar. Crystallography is the technique that gives highly p recise information on molecular structure. Don’t waste time! Our writers will create an original "The Effect of the Molecular Weight to the Rate of Diffusion" essay for you Create order Sucrose crystallizes in the monoclinic space group P21, with values at 300 K being a = 1. 08631Â  nm, b = 0. 87044Â  nm, c = 0. 77624Â  nm, ? = 102. 938Â °. [3][4] The usual measure of purity of sucrose is by polarimetry — the measurement of the rotation of plane-polarized light by a solution of sugar. The specific rotation at 20 Â °C using yellow sodium-D light (589Â  nm) is +66. 47Â °. Commercial samples of sugar are assayed using this parameter. Sucrose is not damaged by air. [edit] Thermal and oxidative degradation

Hlten515B Implement and Monitor Care for Older Clients...

HLTEN515B implement and monitor care for older clients Written assignment 1 There are many different forms of dementia and each has its own cause. Some of the main type of dementia is Alzheimer’s disease, which is the most common form of dementia affecting 50%-70% of dementia patients (Alzheimers australia, 2005). This is a degenerative illness which attacks the brain, this is achieved buy tangles which are in the middle of shrunken brain cells and plaques which eventually cause the brain cells to die meaning information can no longer be recalled or assimilated. There are also other types of dementia which include vascular dementia which is caused by circulation of the blood to the brain, Parkinson’s disease which is a disorder of the†¦show more content†¦These strategies may help with relieving distress, agitation and challenging behaviours. Strategies when dealing with dementia patients may include, â€Å"introduce yourself at each encounter, use touch as appropriate, try to determine the cause of the behaviour and then try to reduc e or eliminate it. These behaviours may be caused by boredom, which you would try and use activities as a distraction, Pain which we3 will try non-pharmacological treatment first e.g.: heat packs, Anxiety where we will use reassurance and diversion. Often using a soft approach such as smiling, pleasant voice tones while talking calmly in short sentences will help defuse a situation. There are many community services out there to aid dementia patients these may include community nursing, meals on wheels, homecare, home modification, Alzheimer’s Australia, commonwealth centerlink centres, carers association, counselling, ACAT and respite care. Dementia has a huge impact on not only the lives of them self’s but also the family and carer. Watching the person you love degenerate from a fully functioning person to some one that needs to be fully cared for. As a carer, you are likely to experience a range of different feelings. This is particularly difficult because as dementia gradually causes the person’s abilities and personality to change the nature of relationships will also change (better health). TheShow MoreRelatedImplement And Monitor Nursing Care For Older Clients1795 Words   |  8 PagesDiploma of Nursing HLT51612 HLTEN515B Implement and monitor nursing care for older clients Assessment 2 – Case Study Elements 4 5 - Part 1 – Alcohol Related Dementia - Korsakoff’s syndrome Definition: â€Å"Korsakoff’s psychosis, a form of amnesia often seen in chronic alcoholics that is characterised by a loss of short- term memory and an inability to learn new skills. The person is usually disoriented, mat present with delirium and hallucinations, and confabulates to conceal

Barriers to Communication in the Health Sector Free Essays

Barriers to communications in health and social care Communication is simply being able to pass a message and that message being understood by the person it was meant for and well understood and carried out without any problem. When this circle is interrupted either message is lost or not understood then we need to understand why. Barriers in the health sector comes in either: PHYSICAL is when a person can not access the care they want or need because of a physical problem like a walking difficulty or a wheelchair access * EMMOTIONAL:The barriers in the care sector are emotions. We will write a custom essay sample on Barriers to Communication in the Health Sector or any similar topic only for you Order Now If not have dealt with certain feelings before by the feeler. †Ã¢â‚¬â„¢Emotions can play a big part in barriers. It is important that workers within the health and social care field do not let their own emotions get the better of them.They must be professional and although friendships can be made it is important not too get attached to a service user or patient. † †Ã¢â‚¬â„¢In the health and social care setting many people may have problems and many things may be hard to deal with but workers must maintain professionals and not show a lot of emotion, yes we can empathise but we should not make a service user feel worse or more upset. * LANGUAGE :If a patient calls at his Gp and he cant speak English and no one can understand what he/she is saying then it might lead to time waste in treating that patient in terms of diagnosing patient ailment which could be deadly in terms of wrong diagnoses or time wasted in getting an interpreter. How to cite Barriers to Communication in the Health Sector, Papers