acid. Equivalent weight is determined by the pairing the unknown’s acidic hydrogens (H+) with known quantities of hydroxyl ions (OH-) through the process of titration. Before beginning a titration of the unknown acid‚ several practice titrations of HCl (hydrochloric acid) with a known
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Thermochemistry Lab Purpose: This lab taught procedures for determining heat of capacity of a calorimeter and measuring enthalpy of change for three reactions. It also enforced methods of analyzing data obtained through experimentation and calculating enthalpy. These procedures are used in the branch of thermodynamics known as thermochemistry which is the study of energy changes that accompany chemical reactions. Concepts from this lab can be used to determine the potential energy of a chemical
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Introduction: A balanced chemical equation has reactants and product that has to represent a formulae. The amount of each element‚ number needs to be the same in either side of the equation. (E.g.‚ HCl(aq)+NaHCO3(s) reacts to produce NaCl(aq)+H2O(I)+CO2(g)‚ this is the equation given for this lab). This help us view the study of Law of Conservation of Mass‚ when either side of equation is equally balanced. The calculation for formula mass helps determine if you need to convert grams to a particular
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CASE APPLICATION Understanding HCLites: Part 2 HCL Technologies is headquartered in the world’s largest democracy‚ so it’s quite fitting that the New Delhi-based company is attempting a radical experiment in workplace democracy. CEO Vineet Nayar is committed to creating a company where the job of company leaders is to enable people to find their own destiny by gravitating to their strengths. As we discussed in the chapter opener‚ one thing that Nayar has done is to pioneer a culture in which
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Definition: Substances that release hydrogen ions (H+) when dissolved in water. Strong Acids | Weak Acids | Chemical Name | Chemical Formula | Organic acids such as citric acid‚ ethanoic acid. | Hydrochloric acid | HCl | | Sulphuric acid | H2SO4 | | Nitric acid | HNO3 | | Note: The strength of an acid depends on the extent of its ionization in water; strong acids fully ionize in water to produce H+ ions. Characteristics of Acids * sour taste *
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INTRODUCTION: Carboxylic acids are organic acids characterized by the presence of a carboxyl group‚ -COOH. This acid acts as a weak acid‚ which can react with a strong base. Carboxylic acids form hydrogen bonds with many water molecules and are more soluble with one to four carbon atoms. Also‚ it may have an R group that consist of hydrogen or an alkyl group that changes its water solubility. Carboxylic acids with low molecular weight have odor at room temperature and higher molecular weight
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Training Schedule for In plant Training It was magnificence 22 (From 24 Sep to 22 oct 2011) days training period in The IBN Sina pharmaceutical Industry Ltd. |Sl No. |Section |Date |Duration (Day) | |01 |Liquid |24‚25 Sep-2011 |2 | |02 |Tablet
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Introduction to the Lanthanides r understand that lanthanides differ in their properties from the s- and d-block metals; r recall characteristic properties of these elements; r appreciate reasons for their positioning in the Periodic Table; r understand how the size of the lanthanide ions affects certain properties and how this can r understand how to obtain pure samples of individual Ln3+ ions. 1.1 Introduction Lanthanide chemistry started in Scandinavia. In 1794 Johann Gadolin succeeded in
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A burette and funnel were rinsed off using water and cleaned well. The burette and funnel were rinsed a second time using 5mL of the HCl solution that was prepared the previous week and disposed of in a clean beaker. The rest of the HCl solution was then put in the burette. The beaker containing the baking soda solution was placed under the burette. 1mL of the HCl solution was released at a time into the beaker with the baking soda until a change was observed. The results were recorded. The process
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properties of five common acids used in industry. Give some examples of the typical uses of each. 4. Although HCl(aq) exhibits properties of an Arrhenius acid‚ pure HCl gas and HCl dissolved in a nonpolar solvent exhibit none of the properties of an Arrhenius acid. Explain why. - HCl(g) consists of covalently bonded molecules that don’t ionize. Nonpolar solvent molecules don’t attract HCl molecules to cause them to be ionized. 5. a. What distinguishes strong acids from weak acids? - Strong acids
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