Q: Why should we do a standardization every time we do a titration?
A: Standard solution is one of which we know the concentration . The necessity of standardization…
Q: How can I restore the powder used in Acid - Base Titrations ? the IEC by Acid (0.05 Hcl) -Base (0.05…
A: Indicators in chemistry are referred to those chemicals which give some sort of a visible signal…
Q: b. Sketch the pH curve produced during this titration.
A: On addition HCl , the pH value of the solution gradually decreases and at the equivalence point ,…
Q: Report the largest pK for the weak acid whose titration curve is shown. PH [OH ]
A: The titration curve given is,
Q: How did you determine the values of pka1 and pka2 from the titration curve?
A: For the titration of a polyprotic acid with a base, we get more than one equivalence points. We can…
Q: Discuss what would be observed if a few drops of the indicator phenolphthalein were added to an…
A: Indicators are chemical species that has an ability to change color on varying pH of the solution.…
Q: In this experiment, you will use phenolphthalein as an indicator. Why is it important to match the…
A: It is important to overlap equivalence point of titration in the region of indicator pH range.
Q: Titration Titrant Reductant/ Oxidant Analyte Standardizing Indicator Reagent COD BOD INDIRECT…
A: Given:- Titration Titrant Reductant/ Oxidant Analyte Standardizing Indicator Reagent COD BOD…
Q: Why phenolphthalein is not a suitable indicator in the titration of a strong acid with a weak base?
A: Phenolphthalein is one of the most known indicators during the titration of strong acid and a strong…
Q: Why a mixture of HCl and KCl does not function as a buffer where as a mixture of CH3COOH and…
A: Buffer solutions are those solutions that resist the change in pH upon the addition of a small…
Q: Which of the following can be used as an indicator for an acid base titration? A. Methyl orange B.…
A:
Q: est used for the titration of aqueous ammonia and benzoic acid
A: When pH change between acid and base neutralization reaction appears in pH change of indicator then…
Q: What is the purpose of titration? What is the purpose of phenolphthalein? Why is phenolphthalein…
A: SOLUTION (1.) : Titration (also known as titrimetry and volumetric analysis) is a common…
Q: Why there is no suitable indicators for weak acid and weak base tritration
A: Titration is a process of adding a solution of known concentration (or strength) to a solution whose…
Q: 2. What is the physical observation when the endpoint has been achieved during titration
A: Titration is done to quantitatively analyze the chemical reagents namely acid-base,…
Q: why in NH3 is the complex methyl red indicator PH=5 used in the titration of NaOH and HCl
A: Introduction: Methyl Red is an azo dyes and it is a dark red crystalline powder .It is an pH…
Q: Would you recommend adding the phenolphthalein and methyl orange indicators together at the start of…
A: In titration the equivalence point is known with the help of indicator which changes its color at…
Q: Standard solutions of most reductants are used in back titration because. a. Their reactions with…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: Suppose there was a large air bubble in the tip of the acid burette during the titration and it was…
A: Volumetric titrations are used to determine the concentrations of an unknown solution. It involves…
Q: Calculate the pH of the NH3/NH4+ buffer after the addition of the HCl. How does it compare to the…
A: The given NH3/NH4+ buffer is a basic buffer and its pOH is determined using the…
Q: In this experiment, a student used a pH probe that was not properly calibrated. The probe reads the…
A:
Q: Which indicator could be used to titrate aqueous NH3 with HCl solution?
A: The difference between the endpoint and the equivalence point is the titration error, which should…
Q: why must the flask be covered with watch glass or inverted beaker?
A: To find: the reason the flask is covered with watch glass or inverted beaker in an acid-base…
Q: How is the End-point detected in a Karl Fisher titration?
A: Karl Fischer titration is a titration procedure that uses volumetric or coulometric titration to…
Q: If water was used to rinse the conical flask used for the titration, how would this affect your…
A: Titration is a quantitative chemical analysis that is used to determine the concentration of an…
Q: In the course of various qualitative analysis procedures, the following mixtures are encountered:…
A: Cd2+ ion is present in group 2. It will get precipitate out by using 0.2M HCl saturate with…
Q: Why Methyl orange is a suitable indicator in the titration of a strong acid with a strong base?
A: For a strong acid-strong base titration, the equivalence point is at pH 7.
Q: If one "overshoots" the phenolphthalein endpoint in the NaOH / KHP titration, will the calculated…
A: If one "overshoots" the phenolphthalein endpoint in the NaOH / KHP titration, will the calculated…
Q: Why did the titrations performed need to be started immediately after adding the sulfuric acid?
A: The reaction of IO3- coming from thiosulphate with KI it releases I2 gas ,when H2SO4 is added, so to…
Q: Explain the conductometric titration curve of strong acid with strong base
A: Conductometric titration: Conductivity of the titration mixture is measured while adding reactant…
Q: In the titration between potassium iodate and the sodium thiosulfate solution, if the titration is…
A: The reaction of IO32- with KI it releases I2 gas ,when H2SO4 is added, so to prevent I2 from…
Q: Draw a titration curve for the reaction of CH3NH2 with HCL.
A: It is a titration of Strong acid Vs Weak base. Here, CH3NH2 is a weak base and HCl is a strong acid.…
Q: Which substance is the primary standard used for the accurate determination of HCl titrant…
A: Primary standard which can be weighed easily, and which is so pure that its weight is truly…
Q: 42 Which of the following statements is/are true of a good acid-base indicator. 1. it is a weak acid…
A: Acid base indicator are used to determine the colour change of a solution depending upon the pH of…
Q: How is the equivalence point determined in potentiometric titrations? Please explain briefly.
A: Answer is explained below.
Q: For strong acid and weak base titration,methyl orange is a suitable indicator whereas…
A: For a strong acid and week base titration, methyl orange is the suitable indicator as its pH value…
Q: The retention of a carboxylic acid analyte in HILIC will decrease as the pH of the buffer component…
A: Answer The retention of a carboxylic acid analyte in HILIC will decrease as the pH of the buffer…
Q: Which of the following sample can be subjected to acidity analysis and titrated against basic…
A: Using titration we can analyze the given sample's concentration. Here in acid-base titration the…
Q: What is the importance of having a titration of about pH 10 in compleximetric titration?
A: In complexometric titration end point is observed by the formation coloured complex.
Q: why does a phenolphthalein can be used as an indicator in the Kjeldahl titration?
A: Phenolphthalein is an indicator used in acid-base titration to determine the equivalence point of…
Q: Topic: Acid-Base Titration What is a primary standard? What are the requirements to consider a…
A: In titration, primary standard is a chemical solution which is used to determine the unknown…
Q: Could a Conductimetric Titration of a Barium Hydroxide Solution be performed using Hydrochloric Acid…
A: Answer
Q: Identify 3 specific sources of error and briefly explain what impact each of them would hav on…
A: The question is based on the concept of titrations. We have to identify the possible sources of…
Q: Explain why the indicator cresol red changes color when the pH is lowered from 10 to 6. What colors…
A: Indicators are coloured compounds , used to indicate the end of a stoichiometric reaction. The…
Q: What is the commonly employed titrant in nonaqueous acidimetry
A: Generally solution of HClO4 in either glacial acetic acid or dioxane solution is used for titration…
Q: Why is bromophenol blue and not phenolphthalein used as an indicator for the antacid titration?
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Why phenolphthalein is a suitable indicator in the titration of a strong acid with a strong base?
Step by step
Solved in 2 steps with 1 images
- What is the purpose of adding phenolphthalein to the acid prior to titration? (What would happen if you failed to add phenolphthalein prior to your titration?)Why is titrant added rapidly at the beginning of titration but more slowly as titration proceeds?What is the purpose of heating a sample prior to analysis (regarding potentiometric titration).
- Based on the results obtained in the table, What is the color of acid-base indicator B when the pH of the medium is equal to its pKa?Why did the titrations performed need to be started immediately after adding the sulfuric acid?In the titration between potassium iodate and the sodium thiosulfate solution, if the titration is not performed immediately after the addition of the sulfuric acid, how would this likely affect the calculated concentration of your diluted sodium thiosulfate solution?