Lab 3: Reaction Order and Rate Laws Name: Student Lab Partners: None Date of Experiment: 16 March 2014 Location: My House Course Number: CHE112 Abstract: When combining compounds‚ there are always two roles considered in the reaction. These are reactants and products. Reactants are the initial compounds before mixing. The products are synonymous with the term byproduct‚ or what remains when the reaction occurs. For example‚ Sodium (Na+) and Chlorine (Cl-)
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the buying behavior of laptops. 2. Determination of customer satisfaction level in regard to various brands. 3. Perception & awareness level of all companies in the market. EXECUTIVE SUMMARY HCL Infosystems is India’s premier information enabling and integration company. It has been able to provide services of International standards to customers across India.HCL Infosystems focuses on the ever-growing segment in Imaging‚ Telecom and services
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Abstract: The purpose of this lab is to find the rate law of the reactants and the reactions order. My beginning thought was I would find whole numbers but that would be to easy. My answers were all with decimals. I found that my rate law Is k (HCl)1.36 (Na2S2O3)0.84. I was expecting the solution to change color but I never thought it would turn yellow/white. Majority of my previous experiments have always had darker colors as the outcome like a pink or purple. I was pretty surprised when I saw
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: DCP‚CE Collecting raw data: Part 1 Weight of magnesium ribbon‚Mg‚m/g (± 0.01) Initial temperature of hydrocloric acid‚HCl‚T/C (± 0.05) Final tmperature of HCl + Mg‚T/C (± 0.05) 0.31 26.00 57.50 Part 2 Weight of magnesium oxide‚MgO‚m/g (± 0.01) Initial temperature of hydrocloric acid‚HCl‚T/C (± 0.05) Final tmperature of HCl + Mg)‚T/C (± 0.05) 0.50 27.50 40.50 Processing Raw Data : Part 1 Equation of the reaction; Mg(s) + 2HCl(ℓ)
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and observations were recorder. Finally‚ in the third and fourth test tubes we added HCL and in the other NaOH and observed the effects. Data Tables and Observations: Data Table 1: Solubility or Reaction Mg Color: Silver‚ metallic Odor: None Effect of Heat: Color changed white Cold H2O: No effect‚ settled at bottom Hot H2O: No effect Litmus Red: Turned purple Litmus Blue: Turned purple Dilute HCL: Started smoking and fizzing Dilute NaOH: No effect Cu Color: Gold‚ copper‚ metallic
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Alkalinity Equipment/Glassware: Chemicals: 1 support stand and buret clamp Phenolphthalein indicator 50mL buret 1 50 mL volumetric pipette 0.010 M HCl 1 short stem funnel 10% Thiosulfate indicator Glass stirring rod
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Aim: To determine the water of crystallization in washing soda crystals (Na2CO3.xH2O) Research Question: What is the percentage composition and the amount (in moles) of water in the given ionic hydrate? (Na2CO3.xH2O) Background Information: Sodium Carbonate also known as Washing Soda (Na2CO3.xH2O) is a sodium salt of carbonic acid. Sodium carbonate is domestically well known for its everyday use as a water softener. It is also used to remove grease‚ oil and wine stains. It can be extracted from
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Record the colour of this solution in note book FIRST FLASK: add a single drop of 0.1M HCl. Swirl the contents of the flask and continue drop-by-drop addition until a definite colour change is observed. SECOND FLASK: will serve as a control. COMPARE the solution colours Record the new colour and the number of drops required for the change to take place in Table 1. Continue the drop-by-drop addition of 0.1M HCl to the first flask until a second colour change occurs. COMPARE with the control (Flask
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We will be reacting sodium carbonate (NaHCO)3 and sodium carbonate (Na2CO3) with hydrochloric acid to produce sodium chloride‚ water‚ and carbon dioxide. The balanced chemical reaction looks like this: NaHCO3 + HCl = NaCl + H2O + CO2 CAUTION: Be especially careful when handling the 6M HCl (aq)‚ as it can cause chemical burns to the skin. If any acid spills on you‚ rinse immediately under running water for up to 15 minutes and report the accident to your instructor. Acid spills may also be neutralized
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Polonium Their Uses: Boron -Amorphous boron is used in pyrotechnic flares to provide a distinctive green colour‚ and in rockets as an igniter. The most important compounds of boron are boric (or boracic) acid‚ widely used as a mild antiseptic‚ and borax which serves as a cleansing flux in welding and as a water softener in washing powders. Boron compounds are also extensively used in the manufacture of borosilicate glasses. Pyrex glass is tough and heat resistant because of the boric acid used to
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