verify the Equilibrium Constant for an Esterification Reaction. MATERIALS/APPARATUS USED: Glacial ethanoic acid 50 cmᵌ pear shaped single neck flask Ethanol condenser Ethyl ethanoate burette Distilled water conical flask Sodium hydroxide solution micro burner Phenolphthalein solution as indicator Sulphamic acid in solid form Anti- bumping granules METHODS: TABLE 1 SHOWING INITIAL MIXTURES EXP. NO. VOLUME OF GLACIAL ETHANOIC/CMᵌ VOLUME OF ETHANOL/CMᵌ VOLUME
Premium Sodium hydroxide Acetic acid Ethanol
Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
Premium Sodium hydroxide Titration Base
solution was added to the hot fat. Since water and oil do not mix‚ this mixture had to be continuously stirred and heated sufficiently to keep the fat melted.Slowly a chemical reaction called saponification would take place between the fat and the hydroxide which resulted in a liquid soap. When the fat and water no longer separated‚ the mixture was allowed to cool. At this point
Premium Sodium hydroxide Soap Alkali
Thermochemistry Laboratory Report Abstract The purposes of these three experiments are to determine the heat capacity of a calorimeter and with that data‚ confirm Hess’s Law and observe enthalpy changes within reactions. By measuring the change in temperature that occurs with the interaction of two different reactants‚ we were able to determine both the calorimeter constant and the change in enthalpy of a given reaction. The results were rather mixed‚ as some numbers more closely resembled the
Premium PH Enthalpy Hydrochloric acid
Enclosures: (1) Data Record (2) Data Treatment (3) Environment Impact Research After hours of vigorous examination‚ we have come to the conclusion that calcium chloride (CaCl2) would be the best deicer to use on a naval base over sodium chloride (NaCl) and ethylene glycol (C2H6O2). In order to melt ice‚ deicers lower the freezing point so that the ice melts at lower temperatures. CaCl2 has a freezing point depression of 5°C‚ whereas NaCl has only a 3°C depression‚ and ethylene
Premium Sodium chloride Water Salt
– BASE TITRATION I. Objectives * Determine the purity of Potassium Acid Phthalate * To titrate effectively II. Data and Results A. Measurement of the Relative Strengths of Acid and Base B. Standardization of Sodium Hydroxide Primary Standard used: Potassium Acid Phthalate (KHP) Formula Mass of Primary Standard: 204.22 g/mol% % Purity of Primary Standard: 99.9% Trials | 1 | 2 | 3 | Mass of Std. KHP | 0.7059 | 0.7345 | 0.7189 | % Purity KHP | 0.6988 |
Premium Sodium hydroxide PH
What’s in a Medicine? (WM) In this document you will find the following material to cover the new AS specification with your students. Notes for students and teachers Revised Chemical Ideas 13.4 part b Answers to problems for 13.4 part b Revised activity WM3 Answers to questions for revised activity WM3 Revised check your notes Revised map of the unit 2 3 6 7 9 10 11 WM © Harcourt Education Ltd 2004 Salters Advanced Chemistry These pages have been downloaded from www.heinemann.co.uk/science 1 Notes
Premium Carboxylic acid Acetic acid Alcohol
contact with cell membranes 5. orange Citric acid Sour Bases Item Formula/Name of Base Characteristics that indicate it is a base 1. soap Potassium hydroxide slippery 2.detergent potassium hydroxide Slippery 3. toothpaste Potassium hydroxide Slippery/bitter 4. Baking soda ? bitter 5. My moms root canal Calcium hydroxide Produce hydroxide ions when dissolved in water
Free Acid Base Sodium hydroxide
Reddish pink No change Yellow Bromothymol blue (green) No change No change Blue Red-cabbage extract (purple) Pink No change Green Table 3 includes data collected throughout the process of standardizing the sodium hydroxide solution. Information from all three titrations of sodium hydroxide into KHP is recorded in order to calculate the average molarity of the NaOH solution in the end. Calculations used to derive the numbers in the table will be shown after the table. Table 3. Data collected
Premium Chemistry Acid Sodium hydroxide
sample was determined and the alkalinity reported as it was titrated using HCl as the titrant. Also‚ the percentage amount of Na2CO3 and NaHCO3 present in the sample was determined at the end of the experiment. Introduction Soda Ash (Na2CO3) or sodium carbonate is commonly used as a cleaning agent and known as “washing soda”. It was found to be alkali and has a high pH in concentrated solutions. It is soluble in water but its solubility decreases slightly as the temperature increases above 35
Premium Acid Carbon dioxide Chemistry