CHEM 110L - Experiment 10 It's Back... Titration

The flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.140 M NAOH. It requires 16.4 mL of the NAOH solution to reach the end point of the titration. What is the initial concentration of HCl? concentration: M HCI about us careers privacy policy terms of use contact us help docx DII F5 PrtScn 8 Home F9 End F10 PgUp F11 F4 F6 F7

Quantity of Acetic Acid in Salad Dressing Titration Results: 1000 μL aliquots of salad dressing against a sodium hydroxide solution Please only fill in 3 concordant results! Titration number: 1 2 3 Error Final burette reading (mL) 7.9 15 22.2 ±0.05 mL Initial burette reading (mL) 0.9 7.9 17 ±0.05 mL Titre (mL) 7 7.1 7.2 ±0.10 mL Average (mean) volume of concordant titres: 7.1 Concentration of Acetic Acid (M) (to 3 sig figs): 6.88 mL IM Concentration of Acetic Acid (as %w/v) (to 3 sig figs): % Note: %w/v = (g/mL) x 100%

10 Chem101 Postlab Quiz 11: BIOL 122 - Int x + -> A app.101edu.co Apps Canvas MYACU to Chem101 Q Quizlet O Khan Academy E Google Docs YouTube Question 5 of 5 A 20.0 mL solution of NaOH is neutralized with 35.0 mL of 0.200 M HBr. What is the concentration of the original NaOH solution? M 1 6. 7 +/- MacBook Pro esc 888 %23 %24 % & 2 4 7 R P Q W Y tab J K caps lock > V M shift 3. 2. 4,

Calculate the Molarity

A 10.0 mL sample of H₂SO4 is titrated with 0.685 M NaOH. The initial buret volume is 0.10 mL and the final buret volume is 28.92 mL. What is the concentration (mol/L) of the H₂SO4 sample? Answer to 3 decimal places with no units. Your Answer: Answer

From the titrations  below, calculate the molarity  of the NaOH  solution in each of the f ollowing? Make sure you balance the equations.    a) NaOH    + HCl  →  NaCl   + H2O 32.00 ml of NaOH  is required to completely react with 25.00 ml  of 0.150 M HCl.  ___________   b)  NaOH   +    H2SO4   →   Na2SO4  +  H2O 42.00 ml of NaOH  is required to completely react with 18.00 ml  of 0.10M H 2SO4 .  __________

Part A: Standardization of a Sodium Hydroxide Solution   Titration 1 Titration 2 Titration 3 Mass of 125 mL flask 45.849g 46.715g 44.953g Mass of flask and KHP 46.849g 47.745g 46.003g Initial buret reading (mL) 0.5 ml 0.5 ml 0.5 ml Final buret reading (mL) 27.8 ml 26.5 ml 26.7 ml Volume of NaOH used (mL) 45.11 ml 45.06 ml 45.14 ml   Calculations   Titration 1 Titration 2 Titration 3 Moles of KHP       Moles of NaOH       Molarity of NaOH         Average Molarity of NaOH: _______________

4

Titration Calculation Practice 4 1. Nitrous acid has a Ka of 4.0 x 104. Calculate the pH at the following places on a titration curve when 40.00 mL of 0.125 M NANO2 is titrated against 0.200 M HC1. a. the initial pH b. the pH at the point when 12.50 mL acid has been added c. the pH at the point when 15.00 mL acid has been added

It’s a 4 part question

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23 The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LIOH solution. What is the concentration of the H2SO4 solution (in M)? A) 0.20 M В) 0.40 М C) 0.10 M D) 0.36 M E) 0.25 М

QUESTION 68 For the titration of HF with NaOH, which location on the titration curve corresponds to the particulate diagram below? 14 IV.- Key 13 12 11 10 I. I. 2. Volume of titrant added (ml.) OI. O II. O II. O IV. %3D Hd

Use the reported molarity For vinegar ( average value) To calculate the percent by mass of HC2H302 and vinegar. Assume the density of the solution is 1.036 g/ml

Can you please do number 14 III.  Can you tell us how to get the volume.  I want to know how to calculate the volume in this titration of ch3nh2. See pic.. This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

Find the number of moles of HCl added.  Concentration of HCl solution, M: 0.60 Initial buret reading: 0.35 ml  Final buret reading: 5.65 ml  Volume of titrant: 5.35 ml

3. Sprite does not contain phosphoric acid. Only sodas that are dark in color contain this acid. sodas such as Sprite contain citric acid, sugar, and carbonaled water Design a simple experiment to determine the concentration of citric acid in SpriteProvide a de tailed procedure

QUESTION 5 In an experiment, it requires 35 ml of NaOH to titrate 0.35 g of dissolved KHP (molecular weight = 204.22 g/mol) to the phenolphthalein end point. Calculate the concentration of NaOH in mol/L . Оa.4.896 М O b.0.4896 M Ос. 0.490 М O d. 0.0490 M O e. 1.714 M