Preview

6.03 Calorimetry Lab

Good Essays
Open Document
Open Document
529 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
6.03 Calorimetry Lab
Approximately 40 mL of the ionized water was added to the 100 mL beaker, then in a 10-mL graduated cylinder, 5-mL of HCl was measured then added to the 100-mL beaker of water. The 100 mL beaker was then placed on the assembled ring stand.
Approximately 40 mL of the 0.1M NaOH was added to the 250 mL beaker. The 40-mL of NaOH was then added to the buret which was then attached to the ring stand.
The LabQuest and the Vernier pH sensor was then hooked up and turned on to measure and graph the pH of the solution and the volume of NaOH. The Vernier pH sensor was then was placed in the solution and remained in the solution throughout the duration of the experiment.
Then, the rate of the drip from the buret was then turned on to have a drip rate of
…show more content…
The solution of NaOH, water and HCl in the 100-mL was poured into the proper waste container. The solution of 40-mL of water and 5-mL of HCl was prepared again in the same 100-mL beaker and placed under the …show more content…
The buret was turned back on with a rate of approximately one drop per second in which the solution was stirred with the magnetic stirrer as the NaOH was titrated into the solution.
As the LabQuest was plotting the graph and the volume of NaOH was increasing as it was added to the HCl solution, it was discovered that the LabQuest malfunctioned and stopped at the pH of two. The pipette was then turned off again and the TA was then notified in which it was then fixed.
The solution containing the HCl, NaOH and water in the 100-mL was then disposed into the proper waste container. In the same 100-mL beaker, 40-mL of water was added then 5-mL of HCl was also added. The Vernier pH sensor was again placed and held in the solution and the LabQuest was properly programmed and turned on.
The buret was then turned on again, with a rate of approximately one drop per second and the solution was stirred as NaOH was added.
The proper graph was created while the NaOH was titrated into the HCl and water solution, in which the equivalence point was displayed on the graph and

You May Also Find These Documents Helpful

  • Good Essays

    Chem Pre-Lab

    • 635 Words
    • 3 Pages

    We know that that the end point of the titration is reached when, after drop after careful drop of NaOH, the solution in the flask retains its pale pink color while swirling for about 30 seconds (as opposed to the pink color simply disappearing as the base mixes into the solution).…

    • 635 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The results for example 2 might have been off, when titrating the solution we added too much HCl and turned the solution yellow instead of green. So instead of boiling the solution until it turned blue again, we had to boil the solution to evaporate the water. That may have thrown off the amount of NaCl that was supposed to form after the water…

    • 420 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    4. Transfer about 20 mL (+0.02 mL) of the HCl to the flask from the acid buret located on the reagent bench. Record the molarity of the HCl and the initial and final volume readings from the buret (+0.02 mL).…

    • 255 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    6.03 Titration Lab

    • 573 Words
    • 3 Pages

    4.) Fill the buret with NaOH. Record the initial volume of the buret in your data table.…

    • 573 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Devry week five chem Ilab

    • 496 Words
    • 2 Pages

    Step 4: Titrate NaOH into HCl until end point, record initial buret volume and add NaOH (quickly at first then slowly) until the HCl solution turns pink and record the final buret volume of NaOH in buret.…

    • 496 Words
    • 2 Pages
    Good Essays
  • Good Essays

    post lab 6

    • 593 Words
    • 2 Pages

    The purpose of this lab is to determine the concentration of HCl when titrated with a standardized NaOH solution, through means of the titration method. My hypothesis is When an unknown concentration of HCl is titrated with a known volume of standardized NaOH solution, one can gather enough data to determine the concentration of the unknown (HCl). My prediction is If an unknown concentration of HCl is titrated with a known volume of NaOH, then one can gather enough data to determine the concentration of the unknown which is HCl.…

    • 593 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Week One: the experiment started off by preparing 250mL of NaOH solution. About 0.5 grams of NaOH were measured and then inserted into a 250mL volumetric flask. Once the NaOH was in the flask, it was then filled up to the 250mL line using deionized water. After the water was put in the flask, the solution was then mixed well until the NaOH dissolved well in the water. The second solution that was prepared was KHP. This was done by measuring 1 gram of KHP. After that was completed, the KHP was put in a beaker and filled up using 50mL of demonized water and mixed well until the KHP dissolved well in the water. Three drops of the indicator phenolphthalein were put in the KHP solution.…

    • 1661 Words
    • 7 Pages
    Better Essays
  • Powerful Essays

    Introduction Titration is a process of neutralization and is commonly used to determine the concentration of an acid or base in a solution. This process involves a solution of known concentration delivered from a buret into the unknown solution until the substance being analyzed is just consumed. In this lab, experimenters using hydrochloric solution to react with the solution of NaOH according to this equation: HCl (aq)+ NaOH(aq) → NaCl(aq) + H2O(l) HCl is a strong acid, NaOH is also a strong base, therefore they will dissolve completely. By adding NaOH into HCl, the hydrogen ions neutralized with hydroxide ions, the theoretical endpoint and then the solution will be weak basic solution. The endpoint…

    • 1146 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    method chem

    • 777 Words
    • 4 Pages

    2 Add approximately 100 mL of distilled water to a 250 mL conical fl ask.…

    • 777 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Acid- Base Titration Lab

    • 742 Words
    • 3 Pages

    Standarized 0.10M HCl solution and unknown NaOH solution were poured into two beakers. The burets were then filled with the solution and put into the flask. Water was then added to the same flask. Then phenolphthalein indicator solution was added before we began titrating by adding more drops of the NaOH solution while swirling the flask until a pink color remained. The liquid levels were recorded on both burets.…

    • 742 Words
    • 3 Pages
    Better Essays
  • Better Essays

    Monitoring the pH range of a laboratory reaction or a process is very important. It is important to keep the pH almost constant even when addition of acids or bases takes place. One can easily know if a solution is an acid or a base using a visual indicator. Indicators are organic dye added to a solution that changes color base on the concentration of H3O ions in the solution. Each color change corresponds into a pH value. Common indicators used in the laboratory are methyl orange, methyl red, bromthymol blue, neutral red and phenolphthalein. In this experiment, methyl orange and phenolphthalein are used.…

    • 1344 Words
    • 6 Pages
    Better Essays
  • Satisfactory Essays

    Back Titration

    • 787 Words
    • 4 Pages

    AIM - To estimate volumetrically the amount of calcium carbonate present in the eggshell and analyzing the sources of errors to evaluate the result.…

    • 787 Words
    • 4 Pages
    Satisfactory Essays
  • Powerful Essays

    Plug Flow Reactor

    • 886 Words
    • 8 Pages

    In this report the first week of the experiment was explained. The concentration of NaOH was unknown therefore, it was necessary to determine concentration of it. This was achieved by titrating NaOH with 0.1M HCl.…

    • 886 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    3. Procedure: Calculate the volume of 6.00 M NaoH that is needed to prepare 250mL of an approximately 0.100 M NaOH solution. Transfer the calculated volume of the 6.00 M NaOH solution to a volumetric flask using a graduated cylinder. Obtain a 25mL buret, and rinse and fill it with the prepared base solution. Make sure there are no air bubbles trap within the buret. Calculate the amount of KHP required to reach equivalence point. Using a 125mL Erlenmeyer flask, place it on a balance, and add KHP to it until the balance reads the calculated the same amount as the KHP calculated in the preceding step. It should be within ±10.0% of the calculated mass. Add 25.00mL of distilled water to the Erlenmeyer flask, containing the KHP. Swirl it until all the KHP has been dissolved. Add 4 drops of bromothymol blue indicator, and the solution should obtain a pale yellow color. Titration the solution with NaOH until the solution changes from the pale yellow color to a blue color. Record the intial ad final read of the buret. Repeat this titration method twice. The volume of the base should be ±0.40mL of each other. Find out the amount of diluted battery acid needed to use for titration with the base. Pour enough of the solution in a breaker to be titrated once. Pipette the exact amount of the diluted battery into a 125mL Erlenmeyer flask. Then add enough distilled till the total volume is 40mL, and add four drops of the indicator. Titrate with NaOH until the solution changes from the pale yellow color to a blue one.…

    • 396 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Egg Shell Lab

    • 678 Words
    • 3 Pages

    Using a funnel, fill a buret partly with 0.100 M sodium hydroxide, to rinse it. Empty the buret into the sink. Then, pour NaOH solution into the buret just above the top mark. Spill out some excess solution to remove all of the bubbles from the top. If there is not enough solution, refill some more into the buret. Read and record the initial volume to ± 0.01 mL.…

    • 678 Words
    • 3 Pages
    Good Essays