Separation and Qualitative Determination of Cations and Anions Instructor’s Guide Master Materials List (complete for 24 students working in pairs) Silver nitrate‚ AgNO3‚ 0.2 M‚ 100 mL* Silver nitrate‚ AgNO3‚ 0.1 M‚ 100 mL* Cupric nitrate‚ Cu(No3)2‚ .02 M‚ 100 mL* Zinc nitrate‚ Zn(NO3)2‚ 0.2 M‚ 100 mL* Ferric nitrate‚ Zn(NO3)2‚ 0.2 M‚ 100 mL* Hydrochloric acid‚ HCl‚ 6 M‚ 125 mL* Nitric acid‚ HNO3‚ 6 M‚ 125 mL* Ammonia‚ NH3‚ 6 M‚ 125 mL* Sulfuric acid‚ H2SO4‚ 6 M‚ 125 mL* Acetic acid‚ CH3COOH
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Qualitative and Quantitative research There are numerous differences between qualitative and quantitative measurement. Quantitative Research Quantitative Research options have been predetermined and a large number of respondents are involved. By definition‚ measurement must be objective‚ quantitative and statistically valid. Simply put‚ it’s about numbers‚ objective hard data. The sample size for a survey is calculated by statisticians using formulas to determine how large a sample size will
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Dealing with Data: Using NVivo in the Qualitative Data Analysis Process The decision to use computer software programs for qualitative data analysis is essentially up to the person analyzing the data. There are positives and negatives when using these software programs to analyze data. A researcher in London wanted to find out if using the software package NVivo would be helpful in her data analysis process. The purpose of the study was to consider the difficulties surrounding interrogation
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Assignment 2: Answer Sheet (LSM 1401 Semester 2 AY2011/12) Nucleic Acid Virtual Laboratories |Name | | |Matriculation number | | |A. DNA Extraction Virtual Lab [2 marks]
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Nt2580: Unit 6 Quantitative and Qualitative Risk Assessment Analysis NT2580: Unit 6 Quantitative and Qualitative Risk Assessment Analysis Qualitative Risk Assessment Single loss expectancy (SLE) : Total loss expected from a single incident Annual rate of occurrence (ARO): Number of times an incident is expected to occur in a year Annual loss expectancy (ALE): Expected loss for a year ALE = SLE X ARO Safeguard value: Cost of a safeguard or control Scenario: Richman Investments provides
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Qualitative Reasoning for Business Overview Kerry Evans University of Phoenix The Qualitative Reason for Business (QRB) course will prepare me for future courses in economics‚ finance‚ accounting‚ operations and research by providing me the tools to utilize these disciplines in an effective manner. Business encompasses many variables that must be addressed. The course will start me on my way to cognitively preparing for the various challenges that await me in my career. Presentations of
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EXTRACTION OF BENZOIC ACID‚ 2-NAPHTHOL‚ AND NAPHTHALENE FROM UNKNOWN SAMPLE # 131 Douglas G. Balmer (T.A. Mike Hall) Dr. Dailey Submitted 11 July 2007 Introduction: The purpose of this experiment was to separate a sample of benzoic acid‚ 2- naphthol‚ and naphthalene of unknown proportions using a two-base extraction method. The three components of the mixture will react differently to sodium bicarbonate and sodium hydroxide because each of the bases’ conjugate acids has a different pKa. The
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tube 4. Hydrochloric acid actives in high temperature but not room temperature. Hydrochloric acid hydrolyzes starch into glucose at high temperature of 95°C in order to show positive Benedict test. At temperature of 37oC‚ hydrochloric acid may show a little or no reaction on starch as starch is not reacted at optimum temperature or the reaction is low. As the time of heating increases‚ the amount of starch that hydrolyzes by the enzyme increases. Hydrochloric acid is added into test tube 2
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Experiment #5: Acid Burn!!! Introduction The goal of this lab was to correctly prepare a 0.2M solution of NaOH‚ identify highly acidic household cleaning chemicals‚ and determine their concentration (molarity) through titrations using the previously prepared 0.2M NaOH solution. Experimental First‚ to create 0.5L of 0.2M solution of NaOH‚ standard 3M NaOH solution was obtained. Next‚ calculations were performed to determine the amount 3M NaOH necessary to create 0.5L of the 0.2M solution and‚ as
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The Role of the Citric Acid Cycle The Citric Acid Cycle is a series of enzyme-catalysed reactions that take place in the mitochondrial matrix of all aerobic organisms. It involves the oxidation of the acetyl group of acetyl CoA to two molecules of carbon dioxide. Each cycle produces one molecule of ATP by substrate-level phosphorylation‚ and reduces three molecules of NAD and one molecule of FAD for use in Oxidative Phosphorylation. The cycle is preceded by Glycolysis‚ which also occurs in anaerobic
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