Emission Spectroscopy Lab Introduction: According to the Bohr atomic model‚ electrons orbit the nucleus in fixed paths with specific energies. Each path is therefore often referred to as an “energy level”. Electrons possessing the lowest energy are found in the levels closest to the nucleus. Electrons of higher energy are located in progressively more distant energy levels. If an electron absorbs sufficient energy to bridge the “gap” between energy levels‚ the electron may jump to a higher
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9-19-13 Dehydrating and Rehydrating a Hydrate Introduction The mass percent of water was determined using the mass of water and dividing it by the total mass of the hydrate and then multiplying that answer by 100%. The number of moles of water in a hydrate was determined by taking the mass of the water released and dividing it by the molar mass of water. The number of moles of water and the number of moles of the hydrate was used to calculate the ratio of moles of water to moles of the sample
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Gabriella Posess AP Chemistry- Period C 11/24/11 Iron Complex Lab Purpose: Be able to tell the difference between iron (II) and iron (III) solutions by performing redox reactions between irons oxidation states. Materials: test tube rack 6 test tubes- 25 x150 mm 25 mL graduated cylinder 6 stoppers 6 mL distilled water 6 mL Iron (III) chloride solution (0.02M FeCl3 x 6H2O) 6 mL Iron (II) sulfate solution (0.02M FeSO4 x 7H2O) 1 drop Potassium ferricyanide solution(0.1M K3Fe(CN)6)
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References 1.) Lehman‚ John. Operational Organic Chemistry‚ 3rd Edition. Experiment 4 (pp. 38-45; 680-687; 644-650)‚ Prentice-Hall‚ 1999. 2.) Laboratory Reference Manual: Experiment 3. Retrieved from: http://academic.reed.edu/chemistry/alan/201_202/lab_manual/expt_salicylic_acid/background.html 3.) Lab 5: Synthesis of Salicylic Acid. Retrieved from: http://academic.evergreen.edu/curricular/whatscookin/Lab%20five%20%20methyl%20saliclate.htm 4.) Handout: Synthesis of Salicylic Acid. Retrieved
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soil from the site and then take several other samples from different points on the site. This ensures variety of soil to ensure that all the site is safe‚ not just a small area where you would have taken your first sample from. I will return to the lab with the samples of soil I have extracted from the site. Here I will make a solution from the samples in order to carry out the identification tests. In order to turn my soil samples
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Chapter 2 Chemistry Comes Alive MATCHING QUESTIONS [pic] Figure 2.1 Using Figure 2.1‚ match the following: 1) Lipid. Answer: D Diff: 2 Page Ref: 46-47; Fig. 2.15 2) Functional protein. Answer: B Diff: 2 Page Ref: 50; Fig. 2.19a 3) Nucleotide. Answer: E Diff: 2 Page Ref: 55; Fig. 2.22a 4) Polysaccharide. Answer: C Diff: 2 Page Ref: 45; Fig. 2.14a 5) Monosaccharide. Answer: A
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The Complete Organic Chemistry Worksheet The Complete Organic Chemistry Worksheet.doc Name 1. Name the following hydrocarbons. 3 j’\- d\ m.u\ \q’\\Lxc.$’s CHr i"’ a.CH3-CH2-CH-CH-CH. I CH: 9n’ tt e. CHr-CH-CH-CH-CHl I t- f‚ ‚3‚ q - \c’ *"jtr1\\-s.x^t’"*- CHz I CH: CHr CHr CHr f. CH3-CH2-CH-CH-CH CHr ?"’ !t’ I j \- A.^ r.alh-{hq"{n-"* Ll A A \-k ‚e*q\t^’-tt i"’ f"l -’"’-lu*"‚Uo..q b cur-f-is-a"‚ "’ ll cH: g. CH: I CH2 3
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[pic] AP® Physics C 2002 Free response Questions The materials included in these files are intended for use by AP teachers for course and exam preparation in the classroom; permission for any other use must be sought from the Advanced Placement Program®. Teachers may reproduce them‚ in whole or in part‚ in limited quantities‚ for face-to-face teaching purposes but may not mass distribute the materials‚ electronically or otherwise. These materials and any copies made of them
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assignment‚ you will dissolve a sample of NaCl in water and then measure the boiling point elevation for the solution. 1. Start Virtual ChemLab and select Boiling Point Elevation from the list of assignments. The lab will open in the Calorimetry laboratory with a calorimeter on the lab bench and a sample of sodium chloride (NaCl) on the balance. 2. Record the mass of the sodium chloride in the data table. If it is too small to read‚ click on the Balance area to zoom in‚ record the reading
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LAB 6 PART 1: LAB ON BONE TISSUE LAB OBJECTIVES: Upon completion of this exercise‚ the student should be able to dissect a chicken drumstick and identify the superficial and internal anatomies of a long bone. THE ANATOMY OF A LONG BONE Identify the anatomical structures of a long bone by examining the tibia of a chicken. MATERIALS NEEDED: Textbook and/or atlas Two chicken drumsticks Sharp knife or single-edge razor blade Tweezers Magnifying glass Camera DISSECTION PROCEDURE:
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