r Lab Report 5 Introduction to the Classes of Chemical Reactions Course: Chem. 1151L‚ Tuesday & Thursday June 23‚ 2011 Mr. Nasir Uddin Pre Lab Questions: 1. CaBr2 (aq) + K3PO4 (aq) → CA(PO4)2(S) + KBr (aq) = Ca3(PO4)2 + 6 KBr Double Replacement 2. Li(s) + O2(g) = Li2O(s) =2 Li2O Decomposition 3. CH4 + O2 = CO2 + H2O = CO2 + 2 H2O Combination 4. AgBr(s) = Ag (s) + Br2(l) = 2 Ag + Br2 Combination 5. Mg(s) + H2SO4 (aq) = MgSO4 + H2
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device (HID)‚ and industry standard protocols (MIDI and DMX512) to control audio and visualist software. This makes it easy for anyone to perform music‚ visuals‚ and lighting sequences at the same time‚ in real time. The project is heavily influenced by HCI‚ TUI‚ Controllerism and VJing. Hardware controllers have been analysed‚ researched‚ designed‚ implemented and tested. Communication software programs have been written for the controllers and HID devices. These programs allow the hardware to communicate
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Lab Experiment 6 : Chemical and Physical Properties Lab Experiment 6 : Chemical and Physical Properties Purpose: The purpose of this lab is to test substances and to determine the physical and chemical properties of substances. Material matches‚ glassbeaker 100 mL‚ burner-fuel‚ goggles-Safety‚ stirring rod - Glass 1 test tube(5)‚ 13 x 100 mm in bubble bag‚ test-tube-clamp-holder test-tube- cleaning-brush‚well-Plate-24‚ well-plate‚ litmus paper‚ blue - in
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Experiment 3 : Preparation of Solutions and Buffers Objectives : 1. To study and understand the principle theory and formula of preparation of buffer and solution. 2. To learn the methods of buffer and solution preparation. 3. To focus on concentration units of molarity‚ percentage of concentration‚ and dilution of solution. Introduction : When a substance‚ called a solute‚ is dissolved in another substance‚ called the solvent‚ a solution is formed. A solution is known as a homogeneous
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into more detail regarding the comparisons and contrasts of the use of Health Care Information systems in a contemporary physician office versus a physician office twenty years ago. Technological advantages and major events that influence our current HCIS practices will also be included. Comparisons and Contrasts In the early 1990s‚ physician offices were mainly using paper-based patient records stored in filing cabinets. These records were locked with limited access to these records. Physicians
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Solutions: Strong Acids and Bases” Laboratory Manual. Pearson Publishing 2012‚ pp. 113-126. Data and results Acids Concentration of acid after dilution Experimental pH Theoretical pH % error HCI 1 2*10-2 M 2.12 1.69 20.28% HCI 2 8*10-4 M 2.64 3.09 17.04% HCI 3 3.2*10-5 M 3.38 4.49 24.72% HCI 4 1.3*10-6 M 5.85 5.88 0.51% Bases Concentration of base after dilution Experimental pH Theoretical pH % error NaOH 1 2*10-2 M 11.42 12.31 7.15% NaOH 2 8*10-4 M 9.64 10.91 11.55% NaOH 3 3.2*10-5
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Interaction. Though I did not have the formal knowledge about this field until I attended the HCI course in my undergraduate program‚ now when I think about it‚ I find that I was always subconsciously intrigued by this‚ throughout my undergraduate life. As
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Place any one of the original “Trinity” personal computers; PET‚ Apple II or TRS-80 in front of a non-tech savvy person and the look you will receive is one of absolute bafflement. For one‚ though they were made in the 70s‚ that was over 40 years ago and personal computing has gone through many interface changes since then. While the Trinity may resemble what we 21st century computer users are used to‚ they don’t exactly fit the profile for a personal computer any businessman/women would currently
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otherwise stated‚ then recording the type of physical reaction or color changes that occurred. Well#/questions Chemicals Reactions A NaHCO 3 and HCI - C0 2 When combined Sodium Bicarbonate and Hydrochloric Acid‚ Carbon Dioxide is produced. The two chemicals do not undergo a change in color but a chemical change when CO2 is produced. B HCI and BTB When Hydrochloric acid and Bromothymal blue are combined there is a physical change. The combination results in a yellowish tint. This means
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Heidi Duncan 11/24/13 Exothermic and Endothermic Reactions Lab The purpose of this lab is to observe how heat is released or absorbed with different chemicals. Data Table 1 – HCI and NaOH Trial 1 Trial 2 Avg Volume 1.0 M HCI(ml) 25 25 - Volume1.0 M NaOH (ml) 25 25 - Ti of HCI before mixing 20 20 - Ti of NaOH before mixing( 20 20 - Average Ti before mixing( 20 20 - Tf of mixture ) 26 26 - T ) 6 6 - Specific Heat (J/g) 4.184 4.184 - Heat‚ q (J) 1255.2
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