Chemistry Lab #1 THER 368: Heat of Neutralization Objective The purpose of this lab was to: * Determine the heat of neutralization for the reaction of sodium hydroxide (NaOH) and hydrochloric acid (HCI). Requirement The heat of neutralization (∆Hneutzn ) is the heat transferred when 1 mol of an acid reacts with 1 mol of a base. This heat is generally reported in either kilojoules per mole (kJ/mol) or kilocalories per mole (kcal mol). The reaction of HCI and NaOH solutions
Premium Sodium hydroxide Temperature Thermodynamics
Table 1: Data Collection Table – Contains all of the primary data directly obtained from the lab. Indicator | Initial volume of NaOH in burette (ml) ±0.05 | Final Volume of NaOH in burette (ml) ±0.05 | Final – initial Burette Reading (Volume of NaOH used) (ml) ±0.1 | Qualitative Observations | Phenolphthalein | 0.00 | 0.90 | 0.9 | At first when the base was being dropped into the vinegar there wasn’t a color change‚ however when the solutions came close to full titration‚ the solution
Premium PH indicator Sodium hydroxide Titration
What mass of chlorine was present in the sample? A. 0.127 g B. 0.355 g C. 0.994 g D. 1.01 g Question 10 (2009) The level of carbon dioxide in the air in a spacecraft can be controlled by passing the air through canisters containing lithium hydroxide‚ LiOH. In a laboratory trial‚ the air in a 5.00 L container at 1.10 × 102 kPa and 25.0°C was passed through a canister of LiOH. The pressure of the air in the container decreased to 1.00 × 102 kPa‚ measured at 25.0°C. The mass of CO2 absorbed from
Premium Sodium hydroxide Carbon dioxide Chlorine
determination. Experiment Scheme6 Figure 1. Reaction equation.6 A hot water bath was prepared in a fume hood using a 250-mL beaker. 2.5 g of p-acetamidobenzenesulfonyl chloride was placed into a 50 mL Erlenmeyer flask and 11 mL of dilute ammonium hydroxide solution was added to it. The mixture was stirred with a glass stirring rod. The mixture was heated in the hot water bath (70C) for 10 minutes and stirred occasionally. The flask was allowed to cool and placed in an ice water bath for 15 minutes
Free PH Hydrochloric acid Ammonia
Standardization of Solution and Titration Lab Report‚ Preparing a Dilute HCl Solution from a Concentrated One Titrating NAOH Solution with HCl Solution (of Known Concentration) Chemistry lab report(by abdazino abdalla) International College Objective preparing a dilute HCl solution from a concentrated one titrating NAOH solution with HCl solution (of known concentration) Procedure Section A: Preparation of 100.0cm3 0.480 mol/dm3 HCl solution a)Determine the volume of the concentrated acid
Premium Sodium hydroxide Titration Hydrochloric acid
From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search For other uses‚ see Soap (disambiguation). [pic] [pic] A collection of decorative soaps‚ often found in hotels [pic] [pic] Two equivalent images of the chemical structure of sodium stearate‚ a typical soap. In chemistry‚ soap is a salt of a fatty acid.[1] Soaps are mainly used as surfactants for washing‚ bathing‚ and cleaning‚ but they are also used in textile spinning and are important components of lubricants. Soaps for cleansing
Premium Soap Sodium hydroxide
started every 5 seconds‚ we would record how much oxygen was produced for 30 seconds. We repeated that process for two trials For the third experimental group we altered the pH of the catalase solution from a pH of 6 to a pH of 8 by adding 1 M of Sodium Hydroxide to the solution. To make sure it was a pH that was needed‚ we used a pH test strip. We added 40 ml of 1% Hydrogen Peroxide and altered catalase
Premium PH Base Sodium hydroxide
feeling on contact with skin. Bases readily accept hydrogen ions and has a pH level that is higher the 7. Bases have a bitter taste and neutralise d by acids‚ producing water and a salt. Some common laboratory bases are Sodium Hydroxide‚ Potassium Hydroxide and Calcium Hydroxide. Stronger bases are commonly used today in many cleaning products. Indicators help us find wether if a chemical is an acid or base. The scale that is used to find wether a chemical is an acid or a base is the pH scale
Premium Acid Sodium hydroxide Base
citric acid (HC6H8O7) and phosphoric acid (H3PO4). B. Objectives At the end of this exercise‚ you must be able to: Prepare and standardize a solution of Sodium hydroxide solution Determine the acidity of the two soft drink samples using the standardized solution Perform the right titration techniques II. Materials A. Reagents Sodium hydroxide (NaOH) pellets Potassium acid phthalate (HKC8H4O4) Phenolphthalein Soft drinks samples B. Apparatus 250-ml beaker 250-ml Erlenmeyer flask 100-ml volumetric
Premium Sodium hydroxide Carbon dioxide Acid
In the majority field of chemical processes‚ the reactor vessel in which the reaction process take place is the key component of the equipment.The design of the reactors is very important to the success of the production. In this experiment‚ sodium hydroxide and ethyl acetate react in tubular flow reactor.Both of the reactants fed to the reactor at equimolar flowrate for a certain time.The reaction is carried out at different volumetric flowrate.The conductivity value of outlet stream is measured
Premium Chemical reaction Reaction rate Rate equation