In part A‚ solutions needed in the experiment were prepared‚ and the LabQuest was set up. By adding 100mL 6M HCl to 200mL deionized water‚ 300mL of 2M HCl solution was prepared. Then 150mL 2M NaOH solution was prepared by adding 100mL 3M NaOH to 50mL deionized water. Finally‚ the LabQuest was connected to the temperature probe‚ and set up to collect data every 15 seconds‚ the duration was set to be 180 seconds. In part B‚ three reactions were performed. In reaction 1‚ two Styrofoam cups were stacked
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ST. Peter’s Academy Polangui‚ Albay ORSEM 2014 Submitted By: Krisell Agaton Submitted to: Mr. Gilbert Baynado What I Did/What I Learn/ What I Want To Learn This seminar‚ we the 4th year join forces to make this event memorable and successful with our little effort in doing tasks that were assigned. I was in charge on the preparation of the program that was given to our guest speakers and groupmates. I also help in decoration
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tomb (TT277) from the 19th dynasty (c. 1293-1185 BC) (Fig. 1) which belongs to Amenemonet (the divine father of the temple of King Amenhotep III) at Qurnet Murai necropolis‚ western Luxor (about 670 km south of Cairo). Fig. 1. View of the wall decorations of the tomb of Amenemonet (TT 277)‚ Qurnet Murai necropolis‚ Luxor. 2.2. Visual observations Preliminary observations on the samples were per- formed using an Olympus SZ-40 stereomicroscope (10 and 20 objectives) equipped with an Olympus DP10 digital
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In the face of adversity‚ the beliefs of an individual may be greatly altered‚ or even liquidated‚ leading to the lack of execution or bad behavior. Even if a person with strong beliefs and morals is put into a difficult and unexpected situation‚ they may completely and unwillingly disregard their beliefs and morals and act accordingly‚ or not at all. Around lots of people‚ when bystander apathy or diffusion of responsibility is present‚ the individual may be affected by it as well. In Night‚ Elie
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Ahjaina Beard Mrs. Lewis IB/AP Language and Composition 11 November 2014 The Media and You The media draws the attention of millions of people around the world daily and with this major task the media displays positive influence onto its audience. When disasters happen the media is the first to let the people know what happened‚ how it happened‚ and lastly why it happened. Multiple sources prove the argument of the media positively playing a role on the effects of disasters. Everyone nowadays
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At the beginning of the lab‚ a micro test tube with and without glass wool was weighed on an analytical balance. A watch glass‚ crucible‚ and lid were also weighed. The masses of all the materials needed for the lab were recorded in the data tables of the laboratory notebook. An unknown vial was obtained from the teacher and set to zero on the balance. About 0.6 grams of the unknown was measured into the micro test tube. The analytical balance was set to zero again and then the test tube with the
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Experiment #1: Synthesis of Salicylic Acid From Wintergreen Oil By: Asad Razzaq TA: Date: 18/01/2015 222/Lab Section 8 Introduction Salicylic acid‚ used in production of substances used worldwide such as commonly used analgesic drug aspirin(cite)‚ can be obtained from natural resources such as wintergreen oil or can be synthesized. Through a series of chemical reactions with cheap raw materials beginning with beginning with methyl salicylate and‚ it is a cheaper and more
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Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial
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Bibliography: Heyworth‚ Rex M Dr‚ and J G R Briggs. Chemistry Insights. Singapore: Pearson Education South East Asia‚ 2007 http://www.google.com http://www.ausetute.com.au/elecysis.html http://www.nmsea.org/Curriculhttp://www.nmsea.org/Curriculum/7_12/electrolysis/electrolysis.htmum/7_12/electrolysis/electrolysis
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Chemistry 200 Exam 1 Review Problems 1. Calculate the number of atoms in 10.0 grams of Fe. 2. Give the mass number‚ #protons‚ #neutrons and #electrons for the isotope strontium-88. 3. Calculate the number of moles of carbon in 50.0 g of benzene C6H6 4. A substance is found to be 38.7 % C‚ 9.7 % H and 51.6 % O by mass. Its molar mass is 62.1 g/mole. What is its molecular formula? 5. Name the following: a) Ca(OH)2 b) KCN c) HClO4(aq) d) FeSO4 e) Na2O f) SF6 g)
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