or base. Purpose: I. Prepare a standard solution of sodium hydroxide II. Standardize a sodium hydroxide solution by using potassium hydrogen phthalate (KHP) III. When given whether the acid is monoprotic‚ diprotic‚ or triprotic ‚ determine the molar mass of the unknown organic acid. IV. Calculate the Molarity of the Soft drink. Materials: * 50 mL Buret * Beaker * Erlenmeyer Flask * Sodium Hydroxide * Water * Balance * Unknown Acids
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Date: 26.02.2013 Title: titration method AIM 1. To titrate sodium hydroxide with hydrochloric acid Apparatus: * Burette (50cm3) * Pipette (10cm3) * Three (3) Conical Flasks (250cm3) * Two (2) Beakers (250cm3) * Funnel * Wash Bottle * Retort Stand * Boss and Clamp * Pipette filler Material: * 0.08 mol dm-3 hydrochloric acid * 0.1 mol dm-3 sodium hydroxide * Phenolphthalein indicator Method: 1. The burette was
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buret KHP Procedure: Part 1: Standardization of a Sodium Hydroxide Solution 1. Obtain a sample of pre-dried potassium hydrogen phthalate (KHP) 2. Weigh 0.4-0.6 grams of KHP‚ then record in Data Table 1. 3. Transfer the KHP into the Erlenmeyer flask using the funnel‚ then use the spray bottle to get any remaining solid into the flask. 4. Add 40 mL of water to the flask and whirl until thoroughly dissolved. 5. Obtain 75 mL of sodium hydroxide (NaOH) solution. 6. Clean a 50-mL buret‚ then rinse
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06.03 Calorimetry: Lab Report Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Procedure: Part I: The Dissolving of Solid Sodium Hydroxide in Water Measure out approximately 205 mL of distilled water and pour it into the calorimeter. Stir carefully with a thermometer until a constant temperature is reached. Record the volume of water and the constant initial temperature of the water on your data table. Place
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(aq) = ? CCH3COOH = 0.83 mol/L CNaOH (aq) = 0.145 mol/L Materials: Sodium hydroxide 100 mL Acetic acid 50 mL 250 mL beaker x 2 Distilled water x 1 bottle Erlenmeyer flask x 1 Burette x 1 Pipette x 1 Pipette bulb x 1 Volumetric pipette x 1 Phenolphalein Procedure: Step 1- Gather materials‚ put on eyeglasses and apron. Step 2- Pour 50 mL of acetic acid into one 250 beaker and 100 mL of sodium hydroxide into another 250 mL beaker. Step 3- Clean burette‚ volumetric pipette and
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Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry‚ SUNY College at Brockport‚ Brockport‚ NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment‚ sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as the analyte. The molarity of the sodium hydroxide
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Experiment 5 In the first part of this lab‚ the objective was to get the molar concentration of sodium hydroxide by using the secondary standard‚ sodium hydroxide solution with the primary standard‚ potassium hydrogen phthalate. With this information‚ we could create a second derivative plot‚ which can be used to obtain the exact concentration of the secondary standard‚ sodium hydroxide. Also‚ the indicator can give us these results along with the end points and with the readings from the pH meter;
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Hydrochloric acid reacts with sodium hydroxide shown by this equation: HCl (aq) + NaOH (aq) NaCl (aq) + H2O Safety: * Oxalic acid is naturally occurring‚ therefore is not an environmental hazard. * Disposable of all chemicals can be down the sink * Take care not to splatter the solutions of your skin or eyes. * Wear safety gear throughout the experiment. Apparatus and chemicals: * Oxalic acid crystals [(COOH) 2. xH2O] * 1.0M sodium hydroxide solution * Phenolphthalein
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TITLE : * Analysis of an unknown acetic acid solution OBJECTIVES : * To prepare the sodium hydroxide solution‚ NaOH * To standardise the base against potassium hydrogen phthalate * To analyse the unknown acetic acid RESULTS : A. Preparation of the sodium hydroxide solution Volume of NaOH taken from the stock solution = 3.33 mL B. Standardisation of the base against potassium hydrogen phthalate | 1 | 2 | 3 | Weight KHP | 1.0000 | 1.0004 | 1.0006 | Final volume
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Chemistry : 1. Aluminium hydroxide on thermal decomposition gives aluminium oxide and water 2. Iron (iii) oxide reacts with carbon forming iron and carbonmonoxide 3. Hydrogen peroxide reacts with lead sulphide forming lead sulphate and water 4. Lithium reacts with nitrogen forming lithium nitride 5. Nickel sulphate reacts with sodium phosphate to form nickel phosphate and sodium sulphate 6. Silver oxide reacts with hydrogen peroxide to form silver ‚ water and oxygen 7
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