The water sample from the polluted estuary (number 4), was then subjected to a series of instrumental analysis like chromatography and spectroscopy to determine the exact identities of the pollutants. What kind of analysis are done to the unknown? a. Qualitative analysis b. Quantitative analysis c. Characterization analysis d. Fundamental analysis

The water sample from the polluted estuary (number 4), was then subjected to a series of instrumental analysis like chromatography and spectroscopy to determine the exact identities of the pollutants. What kind of analysis are done to the unknown? a. Qualitative analysis b. Quantitative analysis c. Characterization analysis d. Fundamental analysis

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter10: Potentiometry And Redox Titrations

Section: Chapter Questions

Problem 8P

See similar textbooks

Similar questions

6 PLEASE PROVIDE THE INTERPRETATION OF ALL SAMPLES FOR HELPFUL RATINGS. THANK YOU. *INCLUDE ALL YOUR REFERENCES
1. One of the methods of eliminating interferences, is by adding solvents to the solution in which components to be removed are soluble, which method is this? a. Complexation b. Extraction lon-exchange d. Precipitate С. 2. Which of the following properties of precipitates is desired in gravimetry? a. Large b. Pure С. Free of contaminants d. All of the choices
Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a standardized solution II. Wash the burette with a standardized solution III. Fill the burette to the 50-mL mark IV. Prepare a contrast paper to determine burette volume and titration endpoint
17. This type of analysis implies that the constituent determined was present in very, very low concentration. a. Macro analysis b. Semi-macro analysis c. Micro analysis 18. Which of the following does not happen during digestion? The crystals dissolve and re-precipitate under equilibrium conditions. b. Weakly bound water are lost from the precipitates. c. Filterability improves d. None of the choices
2 Trial 1: [4] Volume of NaOH, dispensed (mL) Trial 1: [5] Molar concentration of NaOH (mol/L) Trial 2: [4] Volume of NaOH, dispensed (mL) How Trial 2: [5] Molar concentration of NaOH (mol/L) Trial 3: [4] Volume of NaOH, dispensed (mL) Trial 3: [5] Molar concentration of NaOH (mol/L)
1. Differentiate the Faians method from the Volhard method of precipitation titrimetry, Include key information such as indicator used, endpoint, analytes, and the chemical reactions.
Mass of Sample Volume of KMnO, solution used in titration Equivalents of permanganate used Equivalents of iron (II) in sample Moles of iron (II) in sample Grams of Iron in Sample % Iron in Sample Average % Iron in Unknown Instructor's Grade for Precision in Part B. Sample Calculations Part B: 0.58179 0.68719 28.19 ml 31,96m6 007662 00266 2 11 n
How will the analyte concentration be altered if the titrant volume recorded is greater than required? cannot be determined from the information given It will be reported lesser than the actual concentration. It will be reported the same as the actual concentration. It will be reported greater than the actual concentration.
Which among these is/are properties for the type of precipitate required in gravimetric analysis? Hygroscopic Known composition Reactive with atmospheric constituents Large particles
Topic: Standardization of acid and base with back titration Note: Include up to 4 decimal places Kindly explain the process Thank you!
Answer in not more than 5 sentences per question 1. Discuss the a) direct method of weighing b) indirect weighing using the analytical balance. 2. Explain how suction filtration is carried out in the laboratory. Give the important points that must be observed in doing the process. 3. Explain why it is important to wash the precipitate. Can distilled water be used to wash all types of precipitates? 4. Discuss how to use a desiccator. When should a desiccant be replaced? Give 2 examples of substances used as desiccants.
N History Bookmarks Profiles Tab Window Help 101 Chem101 C Chegg Search O Ella Enchanted Wa. O They Both Die at t. A Request to Withdr.. U Forms | Office of t. KB Viewing Your Aca.. Have Changes n. Scho Question 8.b of 8 [Tutorial: Titration stoichiometry] This question will walk you through the steps of calculating the volume of titrant required to reach the endpoint based on the volume and concentration of analyte. Consider the standardization of NaOH by titration with C HO, according to the following chemical reaction: 3 N2OH(aq) + C,H,0,(aq)= Na C,H,0,(aq) + 3 H,O(1) Step 2: Design a problem-solving strategy. Which equation will be most helpful for solving this problem? A) PV = nRT B) M,V, = M,V, C) pH = -log[H] D) M,V /n, = M,V/n, MacBook Air * ES 24 4. 23 & 2 3. 5 6. 7 8. Y