Experiment 5 Title: Volumetric Analysis – stoichiometry Purpose: To determine the exact concentration of a monobasic acid‚ HX (KA1) Materials and apparatus: 1. Volumetric flask and stopper (250cm3) 2. Electric balance ±0.01 g 3. Pipette and pipette filler (25cm3) 4. Volumetric flask and stopper (100cm3) 5. Burettes (50cm3) 6. Retort stand and clamp 7. White tile 8. Wash bottle filled with distilled water 9. Spatula 10. Titration
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Unit 2 Vocabulary page 19 Test A 1 Dopasuj nazwy przedmiotów a–e do nazw pomieszczeń 1–5. 1___ 2___ 3___ 4___ 5___ 1 bedroom a microwave 2 dining room b shower 3 kitchen c sofa 4 sitting room d table and chairs 5 bathroom e wardrobe 2 Zakreśl właściwe wyrazy. 1 We put our clothes in a chest of cupboards / drawers / cases. 2 We use a picture / mirror / lamp to see in the dark. 3 We wash clothes in a washing chest / machine / bath. 4 We sit
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Online Mock Test and Exam Management System Abstract Online Examination System is a software solution‚ which allows a particular company or institute to arrange‚ conduct and manage examinations via an online environment. This can be done through the Internet‚ Intranet and/or Local Area Network environments. Some of the problems faced by manual examination systems are delays in result processing‚ filing poses a problem‚ filtering of records is not easy‚ The chance of loss of records is high
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Conclusion I predicted that if the decolorization of DPIP is caused by photosynthesis and not cell respiration and spinach extract containing chloroplasts and mitochondria is incubated with DPIP‚ then the rate of DPIP decolorization should be higher if in bright light verses dark light because DPIP is reduced by photosynthesis and not by the mitochondria or any other cellular function. If DPIP was only decolorized by chloroplasts‚ then the percent transmittance of chloroplast suspensions would be
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In Stanley Milgram’s experiment‚ The Memory Project- effect on punishment on learning‚ the concept of staging in terms of what is real and not real in relation to the photographs objects and subjects‚ which is conveyed through the facilitator and the learner parallels Sontag’s concept of framing and representation In Plato’s Cave‚ and Barthes idea of posing and theater in Camera Lucida. Sontag and Barthes’s understandings of photography’s “reality” intersect in that their notion of the object in
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Conclusion to HIV Aids Media has a powerful role to play in educating the world. It was years ago‚ that Acquired Immune Deficiency Syndrome‚ the disease now recognized all over the world as AIDS‚ was first detected and recorded in Asia. Over the past two decades‚ the infection rate has grown rapidly in Asia‚ which is now second number to Africa in the number of HIV positive people. In Pakistan‚ HIV and AIDS was first detected in 1986 and according to UNAIDS estimates‚ this country now has over
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Solubility as a Property of Matter A Lab of Chemicals‚ Chromatography‚ and Crime! Chemistry is a natural science that deals with the composition of matter and the changes it undergoes. At crime scenes‚ investigators often find unknown materials that need to be identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection
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Several priming experiment were discussed‚ and the results were astonishing. One of the experiment was‚ students were asked to walk down a corridor to their professor’s office and take the “scrambled sentence test.” Throughout the test‚ words like “worried”‚ “Florida‚” “old‚” “lonely‚” “gray‚” “bingo‚” and “wrinkle” were involved‚ which was intended to prime the participants
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Analysis and Interpretation Trends of the data: With the cross-sectional area on the whole it seems to increase as the river progresses‚ with Site 1 being 9.23 and Site 5 being 18.13. However Site 4 has a higher figure than Site 5‚ yet this was due to the fact that we could only use part of Site 4‚ as one half of the river was completely dry‚ so the results from that site are likely to be an anomaly. Looking at the Bedload in the bar graphs it is clear that with the pebble roundness the pebbles
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Introduction In this experiment I aim to find out if caffeine has an effect on the heart rate of daphnia. Daphnia are water fleas that have a sort of heart that we can see in magnification. We can count the number of heart beats in a minute of a regular daphnia and try and get a new one with the same specifications as the old one that may have died. It is also a good idea to get a new one as we want to see how much it affects it from ordinary instead of adding the caffeine one after another
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