Chemistry Write-Up The Thermal Decomposition of Sodium Hydrogen Carbonate Aim: When Sodium Hydrogen Carbonate (NaHCO3) is heated‚ Carbon dioxide and water are given off to leave a white powder. The aim is to find the equations for this reaction. Hypothesis: The experiment will prove which of the equations below is true. It will tell us whether Sodium Carbonate is produced or Sodium Oxide. 2NaHCO3 Na2CO3 + CO2 + H2O 2NaHCO3 Na2O + 2CO2 + H2O Variables: Independent: Original
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drops of TEA‚ afterwards two distinctive phases were formed. pH value of supernatant was measured quickly (pH-meter showed number 11-12). The reaction flask was heated and shaken for 30 minutes‚ followed by decantation to obtain base Memantine (without Hcl). The reaction flask was connected to rotary evaporator equipped with vacuum pump to remove excess solvent (i.e.‚
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PRESENTATION HCL Enterprise Alagu Sundarraj S (11AD02) Industry Profile: Company profile: HCL Enterprise is a garage startup founded in the year 1976. It started as Microcomp and used brand name Televista for selling calculators. Shiv Nadar along with his ex DCM employees Ajai Chowdhry‚ Arjun Malhotra‚ Subhash Arora‚ Yogesh Vaidya‚ S. Raman‚ Mahendra Pratap and DS Puri started the enterprising venture. Group Companies: HCL AXON HCL Technologies HCL Info systems HCL Security
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VIBRATIONAL-ROTATIONAL SPECTRA OF HCl Physical Chemistry Laboratory II‚ CHEM 3155.001 April 20‚ 2012 Introduction and Objective The experimental objective of this lab was to collect an IR spectrum of gaseous HCl and from it the experimental rotational constant‚ B‚ and fundamental vibration frequency‚ v0‚ can be calculated(1). The concept of infrared spectroscopy deals with the infrared region of the electromagnetic spectrum. Molecules absorb at specific resonant frequencies that are characteristic
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Experiment 10: Solubility Product for Calcium Hydroxide GOAL AND OVERVIEW A saturated solution of Ca(OH)2 will be made by reacting calcium metal with water‚ then filtering off the solids: Ca(s) + H2O → Ca(OH)2(s) Ca2+(aq) + 2OH-(aq) The concentration of dissolved hydroxide will be determined by acid-base titration with standardized HCl solution. The Ksp for Ca(OH)2 will be calculated from the experimentally determined saturation concentration of hydroxide. Objectives of the data analysis understand
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hydrochlorothiazide (Microzide)‚ chlorthalidone and others. Diuretics or calcium channel blockers may work better for African-Americans and older people than do angiotensin-converting enzyme (ACE) inhibitors alone. Beta blockers are another type of medication; they reduce the workload on your heart and open your blood vessels‚ causing your heart to beat slower and with less force. Beta blockers include: acebutolol (Sectral)‚
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In this experiment‚ gravimetric analysis will be used to determine the unknown metal carbonate. Gravimetric analysis. Gravimetric analysis is a method where an ion being analyzed can be classified through their mass (Yoder 2018). Due to the fact that carbonates can be hygroscopic‚ which means it would be able to absorb water from water vapor‚ extra precautions have to be taken place to be able to get an accurate mass (Helmenstine 2017). This can be done by using a drying oven and a desiccator. A
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ABABIO BUAHEN SAMUEL CHEMISTRY ONE REF. NO: 20216815 EXPERIMENT A.1.1.2 THE PREPARATION AND STANDARDIZATION OF NaOH AND HCL SOLUTION AIMS & OBJECTIVES: (1) To gain experience with titration procedure (2) To learn to standardize acid & base solution (3) To carry out the preparation of solution of a desired concentration (4) To carry out the preparation of solutions of desired concentration from more concentrated solution INTRODUCTION: Titration is a convenient quantitative method for accurately
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increase in intracellular calcium led to skeletal contractions. However it was not until the early 1960s when the way calcium ions were stored in cells became clearer thanks to work from Ebashi and Lipmann. (Burgoyne and Petersen‚ 1997). Calcium signalling determines whether or not a cell is activated. It is determined by calcium-ON and calcium-OFF mechanisms. Calcium-ON is responsible for pouring Ca2+ into the cytoplasm‚ from both internal and external sources. The calcium-OFF mechanism however removes
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Anlec Hi-Calcium Milk Executive Summary The case at hand is indicative of what will happen to a brand if the marketer failed to do diligent market segmentation. Clearly‚ the brand manager of Andec missed the opportunity with a product of such an enormous potential . He priced his brand 15% higher banking on its high calcium content and its good flavor. He failed to understand that parents decide on what to buy for their children base on what their money can afford‚ which is why Nido brand
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