Preview

Titration simulation write up

Satisfactory Essays
Open Document
Open Document
258 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Titration simulation write up
SCIENCE TITRATION SIMULATION

!

TRIAL 1:!
This reaction was strong acid vs. strong base!

!

Known: Acid!

Unknown: Base

HCl

NaOH

Volume!

25.00 mL

18.66 mL

Molarity

0.1396 M

Uknown

Name!

Indicator

!

Methyl Orange!
Turned red when mixed with the acid solution.!
After adding 18.66 mL of base, turned orange.

After having added the correct amount of base to the acid solution mixed with indicator, we can calculate the concentration of the base solution.!
CAVA = CBVB!
CB = CAVA / VB!
CB = 0.1396M x 25.00 mL / 18.66 mL!
CB = 3.49 M / 18.66!
CB = 0.1870 M!

!

!
!
!
!
!
!
!
!
!

The molarity of the base solution is
0.1870M!

!
!
!
!
!
!
!
!
!
!
!

SCIENCE TITRATION SIMULATION
TRIAL 2:!
This reaction was weak acid vs. strong base!
Known: Base!

Unknown: Acid

NaOH

CH3COOH

Volume!

25.00 mL

20.60

Molarity

0.2138 M

Unknown

Name!

Indicator

Bromothymol Blue!
Turned blue when mixed with the base solution.!
After adding 20.60 mL of acid, turned yellow.

!

After having added the correct amount of acid to the base solution mixed with indicator, we can calculate the concentration of the acid solution.!
CAVA = CBVB!
CA = CBVB / VA!
CA = 0.2138 M x 25.00 mL / 20.60 mL!
CA = 5.345 M / 20.60!
CA = 0.2594 M!

!
!
!
!
!
!
!
!
!
!

The molarity of the acid solution is 0.2594 M!

!
!
!
!
!
!
!
!
!
!
!

SCIENCE TITRATION SIMULATION
TRIAL 2:!
This reaction was strong acid vs. strong base!
Known: Base!

Unknown: Acid

NaOH

HCL

Volume!

25.00 mL

20.1

Molarity

0.1911 M

Unknown

Name!

Indicator

Bromothymol Blue!
Turned blue when mixed with the base solution.!
After adding mL of acid, turned yellow.

After having added the correct amount of acid to the base solution mixed with indicator, we can calculate the concentration of the acid solution.!
CAVA = CBVB!
CA = CBVB / VA!
CA = 0.1911 M x

You May Also Find These Documents Helpful

  • Good Essays

    6.03 Calorimetry Lab

    • 529 Words
    • 3 Pages

    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.…

    • 529 Words
    • 3 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. Insert the pH meter into the Erlenmeyer flask and record the initial pH of the acid. Remember to record the pH of the solution after every 5 milliliters of NaOH added.…

    • 1301 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Rolaid Case Study

    • 505 Words
    • 3 Pages

    It is necessary to stir for five minutes in order to be sure that the end point is reached. Proper mixing of acid and antacid will allow results to be accurate. When hydrochloric acid is initially added into the solution, the Congo Red indicator will immediately detect the low pH of the acid and change to blue, but it is inaccurate because the acid has not reacted with the antacid yet. Stirring the solution will allow the acid and antacid to thoroughly mix together. As both reagents react with each other, the color of the indicator would revert back to its original color, which indicates that the end point is not reached. Stirring the solution will ensure the acid is equally distributed throughout the solution, and effectively reacts with the antacid to reach the correct end point.…

    • 505 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Lab 4 Weak Acid Unknown

    • 304 Words
    • 2 Pages

    When testing the acid, use only between 0.2 g and 0.3 g for each trial (get as precise a measurement as you can). The general procedure is to weigh out your acid, dissolve it in water, add a couple drops of the indicator (phenolphthalein), and then add the sodium hydroxide until you note a color change (from clear to pink). When the color change occurs, you have added enough base to completely react with the acid (the endpoint). You are allowed three trials, and will be graded on accuracy.…

    • 304 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    10 ml of acid was used for all the three trials to keep a constant. During the first trial it took 3.700 ml of NaOH to titrate the HCl, in the second trial it took 3.750 ml, and in the third trial it took 3.750 ml. These differences in amounts of NaOH required to titrate the acid led to different molarities being calculated for the NaOH. The first being 0.270M and the other to being 0.267M. In order to calculate the total volume of base used, the readings from the burette from before and after titration were subtracted from each other. The average of the three molarities was found to be 0.268M for NaOH (Figure 2).…

    • 2337 Words
    • 10 Pages
    Better Essays
  • Satisfactory Essays

    CHEM120 W5 Lab Template 1

    • 414 Words
    • 3 Pages

    Step 1: Obtain acid, in a 100 ml Erlenmeyer flask add 35 ml of an Unknown HCl solution.…

    • 414 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Chem Lab.

    • 520 Words
    • 3 Pages

    8. Add 10 to 15mL of acid to your vial and record the ending volume on your lab sheet.…

    • 520 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    3. Add 10-20 drops of each known solution to respective test tubes, do not mix pipets!…

    • 372 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    In this experiment, I started by adding 560 µL of sulfuric acid to a 5mL conical vial that…

    • 768 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Corn and Milk Lab

    • 290 Words
    • 2 Pages

    6)Use a clean pipet for each indicator,add 15 drops of each indicator to the test tubes…

    • 290 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Transforming Copper

    • 565 Words
    • 3 Pages

    4 a. What test will you perform to determinate when you have added sufficient NaOH solution in Part II?…

    • 565 Words
    • 3 Pages
    Good Essays
  • Good Essays

    paper

    • 542 Words
    • 3 Pages

    An acid-base titration is carried out by adding an acidic titrant to a basic solution. At which point should the titration be stopped and the volume of titrant used be recorded?…

    • 542 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Many compounds absorb a certain spectrum of visible light. Since Beer’s Law describe the relationship between molar absorptivity and concentration, one could use his equation A = kc to find the unknown concentration by the known absorptivity. The graph of absorption spectrum is represented by a linear regression. From the graph, one could deduct that as the concentration decreases, the absorptivity also decreases.…

    • 456 Words
    • 4 Pages
    Satisfactory Essays
  • Satisfactory Essays

    paper

    • 290 Words
    • 2 Pages

    We start to fill test tube 1 4drops of HCI (acid), test tube 2 dilute HCI 1 drop and 3ml water, test tube 3 add 4 drops of NaOH (Base) , test tube 4 dilute NaOH 1 drop and 3ml water, test tube 5 add 3 drops of water (neutral). We filled each tube with the “liver solution to see if there is any reaction in the different test tubes.…

    • 290 Words
    • 2 Pages
    Satisfactory Essays