Define pH indicator. The amount of pH indicator added are normally kept as small as possible in a titration process. Explain on the reason why we should not add excessive pH indicator into sample during titration.

Define pH indicator. The amount of pH indicator added are normally kept as small as possible in a titration process. Explain on the reason why we should not add excessive pH indicator into sample during titration.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter15: Complex Acid/base Systems

Section: Chapter Questions

Problem 15.7QAP

See similar textbooks

Related questions

Q: Describe acid-base titration. What is the equivalence point?

A: Titration is one of the most common method of qualitative analysis of substances given. It is done…

Q: Determination of the Ionization Constant of a weak acid" Labratory How would the calculated value…

A: (1) When we record a lower pH value than the real pH value, the concentration of H+ will be higher,…

Q: Explain what happens when acid is added to a buffer and the pH does not change very much.

A: A buffer is a solution that can resists changes in pH upon adding of a little amount of strong acid…

Q: Why is it important that the color change occurs by the addition of a single drop? Explain in terms…

A: Colour change is the main indication for the completion of a titration.

Q: Should the molarity of the base change when titrating? Explain

A: Titration can be defined as the slow addition of one solution with known concentration to a known…

Q: Describe three characteristics of a good acid-base indicator for a particular titration.

A: Indicators are some chemical substance which is used to detect the endpoint of a titration by some…

Q: explain why the pH of a buffer solution remains unchanged even if we add a little base.

A: Buffer solution: The buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: Group III cations are typically precipitated out as sulfides at low pH when doing qualitative…

A: Answer - True

Q: When do we need to perform a double-indicator titration procedure?

Q: What would be the appearance of the resulting titration curve? A Linear segment curve going down B…

Q: What is the effect of dilution on the pH of a buffer?

A: The pH of a buffer solution of a monoprotic acid HA can be expressed as follows-

Q: Why is it important to do multiple trials of a titration, instead of only one trial?

A: Answer

Q: Determine the titration curve for HCl marked with the titration end point

A: The titration curve is given below

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: . Commonly used standards for the direct determination of the normality of an acid. 2. It is used…

A: Given: 1. Commonly used standards for the direct determination of the normality of an acid. 2. It…

Q: Relationship of Le Chatelier’s principle and Henderson-Hasselbalch Equation on Buffer Solution

A: Le Chatelier's principle states that when any change or disturbance is caused to an equilibrium…

Q: Why the shapes of strong acid–strong base, weak acid–strong base, and weak base–strong acid…

A: Why the shapes of strong acid–strong base, weak acid– strong base, and weak base–strong acid…

Q: Can a buffer solution minimize pH changes when acid and base are added?

A: Buffer: Buffer is solution made from weak acid and its conjugate base or weak base with its…

Q: At the equivalence point of an experiment where a strong acid is titrated using a strong base, which…

Q: Why doesn’t the addition of an acid-base indicator affect the pH of the test solution?

A: A weak organic acid or a base having different colors of an ionized and non-ionized form is termed…

Q: The end point for a titration can be determined graphically. The end point volume for a first…

A: ANSWER IS DISCUSSED BELOW :

Q: Volume Identity Volume Volum of acid of base of base e of water needed for dilution Target pH…

A: The Henderson-Hasselbalch equation for buffers: pH = pKa + log [salt] / [acid] Considering that the…

Q: Please interpret the second derivative plot of titration

Q: What is buffer solution?give the application of buffer with proper solution.

A: To find: The definition for buffer solution Application of buffer

Q: With which of the following ions would you expect a precipate to form after the addition of silver…

Q: Titrating using indicators have limitations. Describe one limitation using a change of solution…

A: Acid-base titrations define their utilization in measuring the potential of one substance(titrate)…

Q: What are the two components of a buffer solution? How do each of them maintain pH?

A: Answer: Buffer solution is the type of solution whose pH doesn't change on adding small quantity of…

Q: During the demonstration, before each metal was added to the water, a drop of an acid-base…

Q: Complete the balanced neutralization equation for the reaction below. Be sure to include the proper…

Q: Discuss how the pH of the solution in the Erlenmeyer flask changes as the titration is carried out.…

A: Titration is one of the most important quantitative analysis used in various laboratory experiments.

Q: The color change at the endpoint should persist for 30 seconds. Explain why the time lapse is a good…

A: Solution- Some chemical reaction occure more slowely thanusual due to1.when mixing of reactant is…

Q: First paragraph: Discuss what is meant by a titration. Discuss the terminology used in a titration.…

A: Titration is a technique used to measure the concentration of an unknown solution.

Q: Which of the following sample can be subjected to acidity analysis and titrated against basic…

A: The sample which has to be titrated against basic titrant must be acidic in nature.

Q: What are the factors on which solubility is affected

A: All known compounds can be dissolve in certain solvents whereas they remain insoluble in other…

Q: Describe the pH changes that occur during the titration of a weak base by a strong acid. What is…

A: A reaction between a base and an acid to give water and salt as products is known as the…

Q: Briefly discuss the terms: End point and Indicator in a Titration.

A: Given that : We have to briefly discuss the terms : 1. End point and 2. Indicator in a Titration.

Q: B.) This is the titration curve of a formic acid (a weak acid) and a strong base. Give the name of…

A: Titration is defined as the process of determining the quantity of a substance A by adding substance…

Q: The indicator phenolphthalein was added to the phosphoric acid solution prior to the titration. A…

A: Phenolphthalein is an artificial indicator having a pH window of 8.0 – 10.0. Phenolphthalein changes…

Q: Observing the chart below, inform which curve represents the titration of a weak acid and which…

A: The question is based on the concept of titrations. We have to identify the nature of each of the…

Q: What is typically added to the reaction to assist in observing the endpoint in a titration?…

Q: Explain two industrial applications of acidic buffer solutions.

A: Introduction : Buffer solutions : Solutions which resist the change in pH when small amount of acid…

Q: What is an acid-base buffer and what two components must be present? What important value do…

A: Buffer Solution is a water-based solution or aqueous solution that consists of a mixture of a weak…

Q: The final part asks for molar solubility.

A: Let the molar solubility of PbI2 be S, then the KSp from the ICE table can be expressed as - Ksp =…

Q: based on the titration curves, compare the three curves and make conclusions based on their shapes

A: Given are the precipitation titration curves for NaCl, NaBr and NaI with AgNO3.

Q: When pH titrations occur, more data points become necessary at the vertical deflection near the…

A: Solution - According to the question - Given - In this given graph we assume this is a titration…

Q: Addition of phenolphthalein to an unknown colorless solution does not cause a color change. The…

A: The indicator that used to determine the pH of solution more precisely, has to be given.

Q: Directions: Fill in the missing words. Choose the correct answer inside the box. Write the answer in…

A: We are authorized to answer only one question at a time. Please post rest of the questions…

Question

Define pH indicator. The amount of pH indicator added are normally kept as small as
possible in a titration process. Explain on the reason why we should not add excessive pH
indicator into sample during titration.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Advantages of potentiometric titrations over 'classical' visual indicator methods: (select the correct statement(s)). Can be used for colored, turbid or fluorescent analyte solution. Can be used if there is no suitable indicator or if the color change is difficult to visualize. Both answers 1 and 2 are correct
Ideally the pink color at the end point of any titration should be pale pink. But if they are all the same shade of dark pink, that is acceptable.
Why are the standard reagents used in neutralization titrations generally strong acids and bases ratherthan weak acids and bases? Explain.
Suppose there was a large air bubble in the tip of the acid burette during the titration and it was dislodged toward the end of your titration. Explain the effect that this would have on the calculated value of the acid's molarity.
Using the table of pH indicators and their respective pKas. Determine which indicator would be best suited for the same three titration scenarios above.
Discuss the theory behind potentiometric pH determinations. Then compare the advantages and disadvantages of potentiometric titration with classical indicator-based titration.
A Total-ionic strength adjustment buffer with an acidic pH is needed to make a NaF stock solution to determine the concentration of F- of the standard solutions. Explain the importance of maintaining the pH and ionic strength of the buffer solution.
Why do you have to titrate until or above pH = 12.5 ± 0.2 to properly identify the unknown acid solution?
Titration Titrant Reductant/ Oxidant Analyte Standardizing Indicator Reagent COD BOD INDIRECT TITRATIONKindly identify the blank sections appropriately.