stream. Variables: * Independent * Sites * Dependent * Water Quality * Controlled * Number of species to collect * Errors & Uncertainties * Changes in weather * Water speed * Water temperature Apparatus: * Universal Indicator Paper * Biotic Index Chart * Large net * Water basin * Magnifying glass * pH chart Method: 1. Select three different sites to collect data from 2. Using the net, create a whirlpool in the stream so that organisms come
forms a salt plus water. Alkalis are a type of base - ones that dissolve in water. Alkalis are compounds that react and neutralise acids. Like bases, they form a salt and water in the reaction. Alkalis turn red litmus indicator paper blue and they cause Universal Indicator paper to turn blue or purple. Alkaline solutions have a pH value greater than 7. Alkaline solutions feel soapy and are corrosive. Examples of bases and alkalis: NAME FORMULA DOES IT DISSOLVE IN WATER ALKALI
Therefore I devised a sequence of tests that would identify which one of the groups the sample contains. The flow chart below shows the chemical techniques, which I will use to identify the functional group of the unknown. 1: Test with universal indicator. [IMAGE] Turn red turn And other colour. 2: Test with bromine water 3: test with 2, 4 DNPH [IMAGE][IMAGE] [IMAGE][IMAGE] [IMAGE][IMAGE] Decolourises No orange/yellow
Neutralisation Reaction Apparatus: The apparatus that I will be using in this experiment will be: * A Burette * A Clamp and Stand * 2x 50ml Beakers * A Conical Flask * A Measuring Cylinder * A Thermometer * Universal Indicator * 25ml Hydrochloric Acid * 25ml Sodium Hydroxide Method/Plan of the experiment: First of all, I will set up the apparatus as the diagram shows: Then, I will measure out the acid and alkali using the measuring cylinder. Once I have done
Ethnography Works Cited Missing Reflexivity has recently been designated as an indicator of postmodernism in anthropological texts. In this context, the practice is attacked as self-indulgent narcissism, but its true scope reaches much further. While some ethnographic texts exhibit an overemphasis on the author, and his position within the work, this is one extreme of the range reflexivity, which also serves as a methodological tool, unincorporated into the writing, and as a means to account
relations between logic and law, which are a special subject-matter, are only a part of a larger whole. There is no hard and fast line separating the place of these relationships from the whole of culture. The quality of this relationship is an indicator in some sense of the nature of culture and of its democracy. I would like to show with regard to the West that the classical logical culture determines the types of rationalities, argumentation patterns, and various kinds of political and juridical
Natural Indicators Each year millions of tourists travel to the woods of New England, upstate New York, Wisconsin, and Canada to witness the appearance of brilliant autumn colors. Sugar maples, red oaks, sumac, birch and other trees and shrubs turn from green to bright red, orange, and yellow. The short, cool days of autumn bring an end to the production of chlorophyll (the green light-gathering pigment). As chlorophyll gradually breaks down, the colors of the more stable carotenoid (yellow/orange)
be to measure the species in question at certain times. However, this would be inconvenient, especially for a three hour laboratory period. Since the iodide ion can be oxidized by the persulphate ion, we can use sodium thiosulphate to be an indicator of the presence of iodine in the solution. For this experiment, we can simply calculate the rate of the reaction by timing the amount of iodine being produced in several runs. The reaction between iodine and sodium persulphate can be depicted
Social Stratification A person's class status can be harder to identify than race or ethnic differences. However, I believe class status is an important indicator of what kind of opportunities lie ahead for people in various class systems, although, I don't necessarily agree with the current class structure. Class places people into a type of structure which goes against the principal belief 'that in America all are created equal,' or that even the poorest child can become President some day
unsupported belief or anxiety over having a serious disease that is based on personal interpretations of bodily symptoms. The patient usually misinterprets bodily sensations. Anxiety and persistent reports of symptoms involving any body part is a good indicator the patient might suffer from a somatization disease or hypochondriasis. A patient's symptoms might change from each visit, but the person's belief that a serious condition exists does not. The patient's symptom complaints may shift from being very
================================================================== During the sterilisation process foods are heated and Vitamin C is destroyed. In order to maintain the initial concentration, Ascorbic Acid is added. [IMAGE] DCPIP (dichlorophenol-indophenol solution) is a dark blue indicator that turns colourless when a certain amount of Ascorbic Acid is detected. The experiment is to determine the concentration of ascorbic acid present in five different solutions of orange juice, each of which has been pre-treated in a different
initially identifies with the conventional character of Ethan Edwards, but is gradually forced to reject this "hero" and his values, and to regard Martin Pawley, a representative of more liberal beliefs, as the new-order "ideal male." Martin is both an indicator of how the audience should react to Ethan's extremist tendencies, and an alternative to them. Through the rejection of Ethan, in fav... ... middle of paper ... ..., even as a victim of the psychological reach of the expansionist credo. Clearly
Michael Korda's "Defining Success" From reading " Defining Success " by Michael Korda, I agree and also disagree with Michael on his way of defining success. The first indicator of success comes when one is making more than one is spending. There are few things that he has left out on how to becoming a success. The things are if you are from a rich family, how well you are educated and who you know. Of course, if you aim at a dream that is so far beyond your reach then you would bound to fail
relationship between God and man. "A Complaint to Her Lord in Her Loneliness," "Black and White," and "Color" all use the colors black, white, and red to explore the relationship between their speakers and God. The poems' speakers see these colors as indicators of their love for God. Through each of the poems, the use of color allows each speaker to come to a better understanding of her relationship with God. From a broader view, many of the things the speakers learn can be applied to the relationship
the ground causes the air to rise taking the moisture with it, it then cools and condenses causing a downdraft that carries a lot of precipitation. Boscastle is an exceptional example of this however; the amount of precipitation involved is an indicator of how rare an event it was. The first of the unique conditions was the wind direction, onshore winds from both the north and the south were bringing air into the low pressure zone that was located over Cornwall, this low pressure zone was
Method 1 Apparatus- · Solution of sulphuric acid (approx 0.05moldm-3) · NaOH solution, 0.100mol dm-3 · 50.00cm3 Burette · 25.0cm3 Pipette · Small Funnel · Clamp and stand · 250.0cm3 Conical flasks · Methyl orange indicator Diagram Method · Set up the stand and buret... ... middle of paper ... ... : 0.001 Therefore 0.001 moles of H2SO4 (~ 0.05 moldm-3) is needed to produce 24.00 cm3 of CO2 Volume of H2SO4 0.001 moles of H2SO4, I will use the
operating flexibility, not because they needed it for obtaining lines of credit and loans. This type of budget could have the company to evaluate its own performance and motivate its manager to increase sales and efficiency of the company. An important indicator is that the company broke the budget for each department on monthly bases, since they had a variation of products and quality products. The reason why they did this stands to the point that the company produced products in two seasons, fall and spring
A physically abused child is easier to spot out then an emotionally or sexually abused child. This is because there are usually physical indicators, like bruises, cuts, and burns on the children's body that are being abused. Some more physical indicators would be bite marks, swelling on any parts of the body, and fractures in awkward places. Behavioral indicators from the child to look out for when determining if someone is being physically abused is if the child avoids physical contact with others
Barbie Since the beginning of time, toys have often been an indicator of the way a society behaves, and how they interact with their children. For example, in ancient Greece, artifacts recovered there testify that children were simply not given toys to play with as in the modern world. The cruel ritual of leaving a sick child on a hillside for dead, seems to indicate a lack of attention to the young (Lord 16). The same is true of today’s society. As you can see with the number of toy stores
reach better reaction rates, since the reaction occurs slowly at room temperature. Unlike many other titrations no indicator is necessary to tell the experimenter when the endpoint of the reaction is. In this case, the experimenter knows when all the oxalate has been consumed because the excess of permanganate will show up as a pink color. Thus, the permanganate ion acts as an indicator itself. The reaction produces its own catalyst in the form of Mn2+ that promotes oxidation. The sulfuric acid added