in acid-base titrations Objectives 1. To understand the importance of choosing suitable indicators for detecting the end points of acid-base titrations. 2. To obtain titration curves for some acid-base titrations. Introduction Indicator is usually a weak organic acid or base that has distinctly different colours in its protonated and deprotonated forms. There are 4 types of acid-base titrations such as strong acid-weak base titration‚ weak acid-strong base titration‚ strong acid-strong
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1.Refer to the exhibit. A network administrator needs to add the command deny ip 10.0.0.0 0.255.255.255 any log to R3. After adding the command‚ the administrator verifies the change using the show access - list command. What sequence number does the new entry have? 0 10‚ and all other items are shifted down to the next sequence number 50 60 ***** 2.Refer to the exhibit. What happens if the network administrator issues the commands shown when an ACL called Managers already exists
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Lab 1‚ Exercise 1 • Based on the information in Table 2‚ what patterns do you observe? The number of fish that I observed in a body of water increases until the dissolved oxygen was at 12 ppm. After that point‚ the number of fish declines slightly. • Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. When the dissolved oxygen levels increase‚ the number of fish that
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Cover Title Page Copyright Publisher’s Note Acknowledgments About the Author Introduction Assessment Test Answers to Assessment Test Chapter 1: Internetworking Internetworking Basics Internetworking Models The OSI Reference Model Summary Exam Essentials Written Labs Review Questions Answers to Review Questions Answers to Written Lab 1.1 Answers to Written Lab 1.2 Answers to Written Lab 1.3 Chapter 2: Review of Ethernet Networking and Data Encapsulation Ethernet Networks in Review Ethernet
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give a base line to compare the potentially tampered samples against. Introduction Vinegar is a solution made from the fermentation of ethanol (CH3CH2OH)‚ which in turn was previously fermented from sugar. The fermentation of ethanol results in the production of acetic acid (CH3COOH). The typical pH of vinegar ranges anywhere from 2 to 3.5‚ although shop-bought vinegar usually measures 2.4 www.wisegeek.com/what-is-vinegar.htm fig 1 In this study we will determine the amount of acid in a vinegar
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LEGAL BASES OF PHILIPPINE EDUCATIONAL SYSTEM MAJOR LEGAL BASES The Philippine Constitutions 1. 1935 CONST. Article XIV Section 5 2. 1973 CONST. Article XV Section 8 (1-8) 3. 1987 CONST. Article XIV Sections 1-5(5) THE 1987 CONSTITUTIONS Article XIV Sections 1-5(5) Section 1. The state shall protect and promote the right of all the citizens to quality education at all levels and shall take appropriate steps to make such education accessible to all. Section 2. The state shall:
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Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and
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B1) 0.087 mg (8%) Riboflavin (vit. B2) 0.04 mg (3%) Niacin (vit. B3) 0.282 mg (2%) Pantothenic acid (B5) 0.25 mg (5%) Vitamin B6 0.06 mg (5%) Folate (vit. B9) 30 μg (8%) Choline 8.4 mg (2%) Vitamin C 53.2 mg (64%) Vitamin E 0.18 mg (1%) Calcium 40 mg (4%) Iron 0.1 mg (1%) Magnesium 10 mg (3%) Manganese 0.025 mg (1%) Phosphorus 14 mg (2%) Potassium 181 mg (4%) Zinc 0.07 mg (1%) Since orange is a citrus fruit‚ it has 0.005 mol/L citric acid. Citric acid is a weak organic
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Change of Base Formula Date________________ Period____ Use a calculator to approximate each to the nearest thousandth. 1) log 3 3.3 2) log 2 30 3) log 4 5 4) log 2 2.1 5) log 3.55 6) log 6 13 7) log 6 40 8) log 4 3.5 9) log 2 2.9 10) log 6 22 11) log 7 8.7 12) log 3 62 ©k z2D041s25 AKmuHtiaX bSFoQfftnwWaQrser gLiLrC0.P i ZAflZln 9rziCg9hWtIsP 0rjeVsre3ryvfeidm.N t qMXaTdpe1 5wwietMh1 SILnDfEi5n6istleP nAslHgvePbmrsau e2z.x -1- Worksheet by Kuta Software LLC 13) log 8 4 14) ln 94
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Base and superstructure ’In the social production of their life‚ men enter into definite relations that are indispensable and independent of their will‚ relations of production which correspond to a definite stage of development of their material productive forces. The sum total of these relations of production constitutes the economic structure of society‚ the real basis‚ on which rises a legal and political superstructure‚ and to which correspond definite forms of social consciousness’ (1) The
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