Why phenolphthalein is not a suitable indicator in the titration of a strong acid with a weak base?

Q: Phenolphthalein (Ka = 1 x 10−9) would be a good indicator choice for the titration of a weak base…

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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: A chemist who works in the process laboratory of the Athabasca Alkali Company makes frequent…

A: Solvay ammonia process is industrial method for production of sodium carbonate. Main ingredients…

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: Many chemical reactions are carried out in the presence of buffers. Use the Henderson-Hasselbalch…

A: Buffer solution : it is a solution which resists in change in pH of solution when a small amount of…

Q: Whether purging of nitrogen gas is required or not, during the acid-base titration of unknown…

A: Potentiometric titration is a laboratory method to carry out direct redox titration but without…

Q: Report the largest pK for the weak acid whose titration curve is shown. PH [OH ]

A: The titration curve given is,

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: While preparing the samples for analysis, you forgot that you already added phenolphthalein…

A: 1. When the Phenopthalein indicator is added more it results in the acid compound into more acidic…

Q: encountered during the analysis in double indicator titration (determining of carbonates in a…

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Q: In a system where a weak acid is an analyte, a strong base is a titrant, what is the milestone pH…

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Q: Why do you have to titrate until or above pH = 12.5 ± 0.2 to properly identify the unknown acid…

A: by titration we can get the quantitatively amount of the acid solution .

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: Briefly discuss titration errors from the use of acid/base indicators

A: There are two types of errors that occurs from the use of acid / base indicators. Determinate error…

Q: Hatsume Mei wanted to maintain the pH of a certain solution within a specified range. What should…

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Q: In the determination of Hammett Plot of Substituteed benzoic acids, explain the principle or what…

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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: Discuss the theory behind potentiometric pH determinations. Then compare the advantages and…

A: Potentiometric pH meter is used to measure the difference in electric potential between the pH…

Q: Why phenolphthalein is a suitable indicator in the titration of a strong acid with a strong base?

A: To choose appropriate indicator for titration for this graph one must know :- a) pIn value of an…

Q: Identify the different techniques used to standardize a solution (Acid-Base Titration)

A: Answer - Standardization is the process of determining the exact concentration (molarity) of a…

Q: Back titration is usually required when none of the choices the standard solution is volatile. the…

A: In volumetric analysis titration is one of the method. Back titration is also called indirect…

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: Is it possible to use phenolphthalein as indicator in the titration of a strong base with a strong…

A: Phenolphthalein is an acid-base indicator and shows a color change in the pH range: 8.3 to 10. In…

Q: A student starts a titration without phenolphthalein in the Erlenmeyer flask.The student realizes…

A: Since the colour changed is observed when the pH of the titration mixture reaches the equivalence…

Q: What is the purpose of adding phenolphthalein to the acid prior to titration?  (What would happen if…

A: In the acid-base titrations, phenolphthalein is used as an indicator. When the endpoint is reached…

Q: Write an introduction for the titration of acetic acid with NaOH and for the titration of Polyprotic…

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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: 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: Which will make a good substitute for bromocresol green in a double indicator titration? (A…

A: In acid-base titration the indicator indicates the equivalence point by changing its color at  end…

Q: What would be an appropriate indicator to use to measure the endpoint volume for a titration with a…

A: While choosing an indicator for acid-base titrations, an indicator whose pH range falls within the…

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: Recall what you know about the neutralization of weak and strong acids and bases. Is the pH at the…

A: 1)If neutralisation of strong acid by strong base, there will be complete dissociation of both acid…

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: 500 mL of 0.1019 M NaOH solution is left open immediately after preparation, and it absorbs 0,652 g…

A: When solution of acetic acid is titrated with NaOH solution using an indicator this is an example of…

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: For Na2CO3 titration, using two indicators, phenolphthalein and methyl orange, the stoichiometric…

A: Given that, Titration of Na2CO3  with HCl. Stoichiometric  relationship of Na2CO3  and HCl  is to be…

Q: Could a Conductimetric Titration of a Barium Hydroxide Solution be performed using Hydrochloric Acid…

A: Answer

Q: What is the best indicator to use for titration of HCL and THAM (tromethamine)? Options are methyl…

A: The pH indicator range of given indicators is  3.0 (yellow) - 4.6 (blue)  Bromophenol Blue  3.0…

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…

Q: Why is the center of the buffer region of a weak acid–strong base titration significant?

A: The reason why the center of the buffer region of a weak acid–strong base titration significant gas…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.