Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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LSM1102 Lab Report Introduction Transformation is a process which involves plasmid DNA being bound to the cell surface and the subsequent uptake of DNA by the cell (Panja et al.‚ 2008). For artificial transformation of E. coli cells with plasmids‚ plasmid DNA has to be extracted from bacterial cells using the High-Speed Plasmid Mini Kit‚ which is then mixed with competent E. coli cells followed by heat shock and the streaking of transformed cells on two different types of agar plate (LB and LB+ampicillin)
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PEES 4200W- Physiology of Exercise Lab #2: Metabolism and Energy Expenditure 1. The Respiratory exchange ratio is the ratio of the volume of carbon dioxide produced and oxygen consumed. The ratio indicates the energy that the subject is expending for indirect calorimetry‚ how efficient the subject ’s body is at utilizing the oxygen inhaled‚ as well as the main substrate being used for energy during varying intensities of exercise. During rest the volume of carbon dioxide was 0.73L/min‚ the volume
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Biology‚ Bio 110; October 1‚ 2014 Observing Membrane Structure and Observing Effects of Chemical stress on Membrane Crystal Eve Lopez‚ Dr. Barua Madhabi Keywords: beet root model system‚ spectrophotometer‚ betacyanin‚ cellular membrane‚ phospholipid Abstract The cellular membrane separates and protects the cell acting almost as a wall. Depending on what stressors there are the cellular membrane can become damaged. The objective of this experiment was to examine the struc
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Introduction In this lab‚ the purpose was to verify Hess’s Law. Four main topics were covered during this experiment including enthalpy of reaction‚ heat of formation‚ Hess’s Law‚ and calorimetry. The enthalpy of reaction‚ ΔHrxn is the heat or enthalpy change for a chemical reaction. The energy change is equal to the amount of heat transferred at a constant pressure in the reaction. The change represents the difference in enthalpy of the products and the reactants and is independent of the steps
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Chapter 1 Chemistry and Measurements Chemistry & Chemicals Study Plan Units of Measurement 4. Scientific Notation 5. Measured Numbers & Significant Figures 6. Significant Figures & Calculations 7. Prefixes & Equalities 8. Conversion Factors 9. Problem Solving 10. Density 1. 2. 3. General‚ Organic‚ and Biological Chemistry Fourth Edition Karen Timberlake Chapter 1 Chemistry and Measurements 1.1 Chemistry and Chemicals © 2013 Pearson Education‚ Inc. Lectures Chemistry Chemistry is the
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and our readings were in milliliters so we had to convert first. In conclusion‚ even though the lab procedure is not about moles‚ most of the calculations are and this is one lab where the concept of
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! Name: Laura Romero ! 5.04H: Gas Stoichiometry Lab Worksheet Data and Observations: Present all relevant data in a data table below. Include an observations section for any observations that you made during the lab. (5 points) Data Table Mass of magnesium strip (grams) 0.032 g Volume of gas collected (mL) 30mL Barometric pressure (atm) 1.1 atm Room Temperature (°C) 22 °C Vapor pressure of the water (torr) 19.8 torr ! ! Calculations: ! 1. Write the
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Introduction The aims of the lab session was to familiarize with the principles‚ operation and application of a light spectrophotometer. This report discusses an experiment to study the relationship of absorbance and concentration‚ the interaction of electromagnetic radiant energy(ERE) and matter which is an important aspect of the Beer-Lambert ’s Law. This law states that the absorption of a compound is directly proportional to the concentration of that particular compound. This is because (a &
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2013 Lab Day/TA/Group: Wednesday(1:35pm)/Group A Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
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