Lab #2 – Assessment Worksheet Applying Encryption and Hashing Algorithms for Secure Communications Overview In this lab‚ you applied common cryptographic techniques to ensure confidentiality‚ integrity‚ and authentication. You created an MD5sum and SHA1 hash on a simple text file on a Linux virtual machine and compared the hash values of the original files with those generated after the file had been modified. Next‚ you used GnuPG to generate an encryption key pair and encrypted a message
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References: 1. Skoog‚ D. A.; Holler‚ F. J.; Crouch‚ S. R. Principles of Instrumental Analysis. Sixth Edition‚ Thomson Brooks/Cole‚ USA‚ 2007. 2. Krugers‚ J. Instrumentation in Gas Chromatography. Centrex Publishing Company-Eindhoven‚ Netherlands‚ 1968. 3. Hubschmann‚ H. Handbook of GC/MS: Fundamentals and Applications. Wiley-VCH Verlag‚ Germany‚ 2001. 4. Scott‚ R. P. W. Chromatographic Detectors:
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Unit 1 – Lesson 1 Chemistry Key Questions 1. Element Standard Notation # Of Electrons # Of Protons # Of Neutrons Sodium 23 11 Na 11 11 12 Chromium 24 Ca 26 26 27 ? Phosphorus 32 P 15 15 16 2. Fireworks; Which metals burn to produce these colours? Red – Lithium (Sr) Blue – Cesium (Cs) Pink – Potassium (K) Yellow/Green – Copper (Cu) Orange – Carbon (Ca) 3. Let’s say that the three bottles contain Fe(NO3)3‚ BaCl‚ and AgNO3. These are Iron (III) Nitrate‚ Barium Chloride
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Chemistry (the etymology of the word has been much disputed)[1] is the science of matter and the changes it undergoes. The science of matter is also addressed by physics‚ but while physics takes a more general and fundamental approach‚ chemistry is more specialized‚ being concerned with the composition‚ behavior (or reaction)‚ structure‚ and properties of matter‚ as well as the changes it undergoes during chemical reactions.[2] It is a physical science which studies various substances‚ atoms‚ molecules
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performed and the power developed when climbing a set of stairs and to determine the relationship between power and time. Pre-Lab Questions: 1. Power is the rate at which work is done. The work divided by the time it takes for the work to be done equals power. 2. The unit for power is the Watt which is Joules/second. 3. One horsepower (hp) is 746 watts. Procedure: In this lab‚ we calculated the work performed and the power that person creates when he or she climbs and runs a set of stairs. Each
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CHEMISTRY III : (CHEMISTRY & YOU) 1 PRETEST 1. The science that tackles the study of matter‚ its structure and the changes in composition that matter undergoes is a. Astrology c. Ecology b. Chemistry d. Physics 2. When a chemist performs an experiment‚ the quantity that is being tested is the a. control c. theory b. law d. variable 3. Juan is comparing how many kilos of rice can be contained in a sack. What process is he doing? a. counting c. measurement b. interpolation
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Titration of KHP | Trial 1 | Trial 2 | Trial 3 | Mass of KHP | 0.1 g | 0.1 g | 0.1 g | Moles of KHP | 4.9E-4 | 4.9E-4 | 4.9E-4 | Moles of NaOH | 4.9E-4 | 4.9E-4 | 4.9E-4 | Initial Volume of NaOH | 0.00 | 0.00 | 0.00 | Final Volume of NaOH | 4.7 mL | 5.0 mL | 5.0 mL | Total Volume of NaOH | 4.7 mL | 5.0 mL | 5.0 mL | Molarity of NaOH | 10.4E-5 | 9.8E-5 | 9.8E-5 | Average Molarity of NaOH | 1.0E-4 | Titration of Vinegar | Trial 1 | Trial 2 | Trial 3 | Volume of Vinegar | 1
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Introduction: The purpose behind (the first step in) this experiment is to show that similarly to week 1‚ the molarity of an acid or base in solution can be determined (so long as one value’s is known) using titration. In this case though‚ finding the molarity of the acid used in the reaction is then used to determine the percent of that acid in a vinegar solution and compared to the standard value for % acid present in vinegar. The second part of the experiment was to see if by titrating a solution
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0 gram iron rod to the solution and observe the reaction. 2 Fe + 3 CuSO4 = 3 Cu + Fe2(SO4)3 The new product is iron (III) sulfate‚ it contains the Fe 3+ ion which is brown. Lead (II) nitrate and potassium iodide solutions Pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of potassium iodide solution to the test tube and record your observations of the reaction. Pb(NO3)2 + 2 KI = 2 KNO3 + PbI2 2. Magnesium metal and hydrochloric acid solution Place one
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WEEK 2 DQ 1 ANSWER Having acquaintance of the foundations and history of nursing helps nursing practice today because it shows not only how far we have come in healthcare and nursing but also how imperative education has been and still is for nurses.This permits us an opportunity to enquire why and then attain answers for current practices via documented evidence.Nursing is an art.One must have passion for it.T o be a nurse one has to be kindhearted ‚tolerant and readiness to give.At the beginning
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