"The effects of concentration on the rate of reaction between hydrochloric acid and sodium thiosulphat" Essays and Research Papers

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    Protein Concentration

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    In this report‚ the concentration of total protein and albumin were calculated with the interpretation of a standard curve. To determine the concentration of total protein in human serum‚ a total protein assay was performed by using the Biuret reagent. Proteins react to this compound because it contains two amide bonds. When the Biuret reagents is introduced to a sample of protein‚ it forms a blue or violet complex. The concentration of albumin in human serum is determined by using the Bromocresol

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    was done by converting maleic acid to fumaric acid. This conversion was accomplished by applying a heat-catalyzed reaction on maleic acid diluted in distilled water and mixing it with HCl using a reflux set-up. A reflex set up is a distillation set up wherein the set up differed because it is inverted vertically. This was done in order to break the pi bond to allow the rotation about the remaining sigma bond since rotation about a pi bond is not possible. After the acid has been refluxed‚ a white

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    Correlation and Regression Analysis : Comparison between Gold rates and Sensex Correlation : Correlation is a statistical technique that can show whether and how strongly pairs of variables are related. Correlation is computed into what is known as the correlation coefficient‚ which ranges between -1 and +1. Perfect positive correlation (a correlation co-efficient of +1) implies that as one security moves‚ either up or down‚ the other security will move in lockstep‚ in the same direction

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    EFFECTS OF GEOGRAPHICS AND RECYCLING 1 Effects of Geographic Location and Recycling Participation. EFFECTS OF GEOGRAPHICS AND RECYCLING Abstract Research was conducted to determine if recycling participation is affected based on where an individual lives and/or where they grew up. Many psychological and sociological studies have looked into the human behavior of recycling; what drives an individual to recycle and what are the key components to a successful recycling program. Results have

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    Acid Rain Experiment.

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    Investigating the effects of acid rain in the growth of cress seedlings IntroductionAcid rain is rain or any other form of precipitation‚ which is unusually acidic. It has harmful effects on plants‚ animals and buildings. Acid rain is mostly caused by human emissions of sulphur and nitrogen compounds which react in the atmosphere to produce acids. Acid rain can slow the growth of vulnerable forests and cause leaves and needles to turn brown and fall off. In addition‚ it depletes minerals from the

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    24‚ 28—40 ORIGINAL ARTICLE Pathophysiology of acid base balance: The theory practice relationship Sharon L. Edwards ∗ Buckinghamshire Chilterns University College‚ Chalfont Campus‚ Newland Park‚ Gorelands Lane‚ Chalfont St. Giles‚ Buckinghamshire HP8 4AD‚ United Kingdom Accepted 13 May 2007 KEYWORDS Acid base balance; Arterial blood gases; Acidosis; Alkalosis Summary There are many disorders/diseases that lead to changes in acid base balance. These conditions are not rare or uncommon

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    special report‚ Acid Precipitation of Gene Likens from Cornell University during 1976‚ the acidity of rain and snow falling on parts of the U.S. and Europe has been rising—for reasons that are still not entirely clear and with consequences that have yet to be well evaluated. Acid precipitation has a long-term effect especially on the living organisms in many lakes and streams which sometimes causes extinction. Related Studies On the study of Schindler during 1988‚ Effects of Acid Rain on Freshwater

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    Investigate the effect of on exercise on the heart rate. Aim: To find out if there is any relevant link between the amounts of exercise taken to increase a person heart rate. Equipment needed: Stop watch Screen volunteer P.E kit Calculator Record sheet Type of exercise: skip for few minutes ‚ then break in between and again repeat it once or twice. Method: First of all‚ we needed to take the resting heart rate of the person who is about to skip. Then‚ with the stopwatch one

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    salicylic acid

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    Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and

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    The Impact of a Reduction in Sunday Penalty Rates for Casual Employees on the Price Mechanism The Australian Financial Review recently published an article titled “Sunday penalty rate to be cut to 50pc” (Dunckley 2014). In summary: A Fair Work Commission ruling has reduced the 75% penalty pay rates for casual employees in Australia who work on Sundays to 50%. Penalty rates are designed to compensate employees for the loss

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