Solution, stir briefly, and monitor the thermometer reading. Quickly pour the NaOH solution into the HCl
The HCl in a test tube rack and insert theĬ. Temperature of each solution, being sure to rinse and wipe the thermometer withĪ paper towel before switching between solutions. How does the change in pH during theĪddition of NaOH differ when a weak acid is Using 20 drops (1 mL) of 0.1 M acetic acid in place Given that 1 mL of liquid is approximately equivalent to 20 averageĭrops, approximately how many mL of 0.1 M NaOH were required to neutralize the 1-mL sample of 0.1 M HCl? Approximately how many drops of NaOH were required to reach pH 7(neutral)? ( record on Data Sheet )ĭ. Continue adding NaOH one drop at a time, until the pH has risen to 7. Add 0.1 M NaOH to the sample of HCl above Refer to theĬolor chart provided with the pH paper. Monitor the pH of a solution during a neutralization reaction. This indicator changes color gradually with pH and can be used to Record the color of the indicator and the pH of M HCl to a clean small test tube in a rack, and add 1ĭrop of universal indicator. Neutralization -equal moles of H+ and OH- react to form a neutral solution What is the identity of the solid residue remaining in theĮvaporating dish? ( record on data sheet )Ĥ. When it has dried, examine theĮvaporating dish. Plate for several minutes using the low setting. On a clean, dry evaporating dish and stir the mixture with a stirring rod. *** Record in the Data Sheet which of theĪcids/bases are strong or are weak electrolytes. Solution, but will glow only dimly when immersed in solutions of weak acid or The light bulb will lowīrightly when the electrodes of the conductivity tester are immersed in strong acid or base Has set up a light bulb conductivity tester and will demonstrate the electricalĬonductivity of the 1 M acid and base solutions. Solutions of weak acids (or other weak electrolytes) conduct electricity Strongly ionized electrolytes) conduct electrical currents well, whereas Same molar concentration (1 M)? ( record on Data Sheet )įor demonstrating the difference in the degree of ionization between strongĪcid and weak acid solutions (or of other electrolytes) is to measure the That of the NaOH solution, although both are at the ( record on Data Sheet )įor the fact that the pH of the ammonia solution is lower (less alkaline) than Using pH paper or universal indicator, determine Of 1 M NaOH and 1 M ammonia in separate wells of the The same molar concentration (1 M)? ( record on Data Sheet ) Than that of the HCl solution, although both are at įor the fact that the pH of the acetic acid solution is higher (less acidic) Using pH paper, determine the pH of each solution and record on Data Sheet. Of 1 M HCl and 1 M acetic Acid (HC 2 H 3 O 2 ) in separate wells of a Hotplate, evaporating dish, and dropper solutions of the following:ġM HC 2H 3O 2. Universal indicator solution, small test tubes & rack, thermometer, Properties of acid/base chemistry will be qualitatively studied in this Protons are transferred between species are called acid/base reactions. As the end users returned to their work environments, they found the new managed computers ready for use.Purpose : Reactions in aqueous solution in which While end users attended the training, support technicians either replaced the old computers with new Base One managed computers, or migrated existing computers to the new Base One managed environment. The overall plan included hour end user review sessions to cover the creation of user accounts including mail services, review network data storage and review the application profile for the new desktops. Widespread deployment required a planned and published rollout schedule that would encompass end user vacations, business meetings and normal business activities. Each computer was built in the lab, tested with a user logon and then deployed to the final end user's desk. In less than six weeks, Base One deployed over 1100 computers and trained all end users. A meeting was held with the test group, including management representatives and Base One, which resulted in the first pass at creating service level agreements to meet end users expectations and that were achievable by the IT department. The Base One primary system was installed and configured within the first three days and initial desktop builds started by the end of the first week.īase One provided documentation for end users so they would better understand the benefits, and responsibilities of the IT department.
Base One worked directly with the Citibank's internal IT staff to install and configure all Desktop systems, and to train the support staff, and deploy the solution to the end users.