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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I. Introduction The purpose of this experiment is to determine the pH values of acids‚ bases‚ and buffers of distilled water and 10.0 buffer using measured concentrations of Sodium hydroxide (NaOH) and/or Hydrochloric acid (HCl). Acid is a compound typically having a bitter taste and capable of nullifying alkalis and releases hydrogen ion when added to a solution‚ or containing an atom that can accept a pair of electrons from a base (McKinley‚ Dean O’Loughlin‚ & Stouter Bidle‚ 2016). Bases are water-soluble
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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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Weak Acid Titration Abstract: Our method for determining the unknown weak acid was to determine the equilibrium constant K from the molecular weight of the weak acid from our titration data. In this lab the acid Potassium hydrogen phthalate and two unknown acids were titrated. We determined the molar mass of the Potassium hydrogen phthalate‚ for the unknown acids we calculated the molar mass and the Ka values. We used NaOH as the known base for titrating in all three of the titrations. Our
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of bicarbonate of soda (2g‚4g‚8g) increases in a cupcake then the height (cm) of the cupcake will rise this is due to the fact of the reaction between the sodium bicarbonate and the acid(lemon juice) in the cake‚and as a result the cupcake will rise.Approximately 5 percent of lemon juice is citric acid‚ when an acid and a base are involved in a chemical reaction ‚ a new product is produced‚ with a neutral base. In the case of lemon juice and sodium bicarbonate‚ carbon dioxide gas‚ water and a salt
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Ratio Analysis to Determine Corporate Health; Exxon Mobile Corp & BP Petroleum Financial statement analysis centers on one or more aspects of a company’s financial state and performance (Wild‚ 2011‚ p.565). According to Wild‚ there are four areas of inquiry that must be given emphasis to when completing a financial analysis (2011‚ p. 565). These four areas include: (1) liquidity‚ (2) solvency‚ (3) profitability‚ and (4) market prospects (Wild‚ 2011‚ pp. 565-582). A ratio analysis expresses a mathematical
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Studying the pH of Strong Acid‚ Weak Acid‚ Salt‚ and Buffer Solutions The purpose of the current experiment was to determine the pH of various hydrochloric acid and acetic acid solutions‚ to determine the pH of various salt solutions‚ to prepare a buffer solution‚ and determine the effects of adding a strong acid and strong base to the buffer solution versus adding a strong acid and strong base to water. The measured pHs for the hydrochloric acid solutions were 1.6‚ 2.2‚ 2.9‚ and 3.8. The measured
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of producing an organic fertilizer by utilizing fish‚ particularly heads of fish such as bonitoes and others as raw material. A fish‚ particularly the head of fish‚ contains organic nitrogen (amino acids such as lysine‚ asparagine‚ glutamine‚ sertine‚ tyrosine‚ proline and the like)‚ nucleic acid‚
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DKFLSDFKLFKJ | Acid-Base Titration. | kfjhdkjhvdkfj | | April Jowers | 12/19/2012 | DKFJSDKJFHDSKJHF | Introduction In this lab we will use basic titrating skills and techniques in order to titrate HCl. We will also be practicing how to prepare the solution. Using the titration data‚ we can practice our stoichiometric skills and also become more familiar with using lab equipment. Titration is the process of measuring the exact volume of a solution of known concentration that is
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Extracted From?.................................................................................................................. 7 Bibliography………………………………………………………………………………………..9 DNA What is DNA? DNA is a molecule called deoxyribonucleic acid which contains the biological instructions‚ meaning it explains about living species; it makes each species unique. It is passed from adult organisms during reproduction‚ along with the instructions it contains. Where is DNA Found? DNA
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