A student starts a titration without phenolphthalein in the Erlenmeyer flask.The student realizes the mistake and adds the phenolphthalein during the titration.Once the phenolphthalein is added,the solution in the Erlenmeyer flask remains colorless.Can the results of this titration be used? Concisely explain.

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 many milliliters of 0.0991 M LiOH are required

A: Given :- Molarity of LiOH solution = 0.0991 M  Molarity of HCl solution = 0.0839 M  Volume of HCl…

Q: Which of the following species will contribute to the errors of a Mohr titration when it is done in…

A: Given,                         Mohr titration in a basic medium   Required,…

Q: back titration done for this analysis?

A: Ans. D. NH3 is a weak base and large amount of titrant is needed to reach equivalence point.…

Q: A 43.9 mL solution of 0.827 mol L-1 HCl is titrated using 0.165 mol L-1 NaOH. What volume of NaOH…

A: Given: Molarity of NaOH=0.165 M The volume of NaOH=V mL Millimoles of NaOH=Molarity x volume…

Q: Four solutions of unknown NaOH concentration are titrated with solutions of HCl. The following table…

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Q: What is the pH at the equivalence point when Jeremiah titrates the NaOH and HCIO3? HCIO3 + NaOH →…

A: Here, we have to find the pH at the equivalence point when NaOH is titrated with HClO3.

Q: bottle of acid in the lab is found. It is labelled as oxalic acid (H2C2O4). There is no…

A: In this question, we will see that which methods we can used to determine the Concentration of…

Q: You were carefully doing your potentiometric titration of vinegar with NaOH when you suddenly had to…

A: A buffer is a solution that can resist the variation in pH. A buffer can be made/prepared by mixing…

Q: Differentiate a two-flask from a one-flask titration method. (in min. 5 sentences)

A: A question based on analytical process that is to be accomplished.

Q: 1. What will be the remaining bromide ion concentration after addition of 20.00 mL AgNO₃? 2. At what…

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Q: of the titration? A) phenolphthalein (pKa = B) phenol red (pKa = 7.9) C) methyl red (pKa = 5.1) D)…

A: In this titration curve, equivalence point present between 6 and 4. At this equivalence point…

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: a 22.1 ml sample of 0.506M formic acid is titrated with 0.506M NaOH. Calculate the pH after the…

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Q: In the determination of the turning point of the titration where the permanganate ion is converted…

A: Redox Titration is a method used in the laboratory to determine the concentration of a given analyte…

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: . What do we call reagents of known concentration that is used to carry out a volumetric titration?…

A: Usually in a volumetric titration,  a solution of known concentration is treated as reference. With…

Q: Phenolphthalein is used in this experiment as a color indicator to detect the endpoint of…

A: Phenolphthalein is used as a color indicator to detect the endpoint of acid base  titration.  When…

Q: An analytical method that is based on determining the volumes of reagent of known strength that is…

A: Volumetric titrations involve measuring the volume of a solution of knownconcentration that is…

Q: Could phenolphthalein be used as an indicator in the Kjeldahl titration?

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Q: Which reagent directly reacts with substance to be titrated? Method – bromometry: Br2; I2; KBr;…

A: Titration is a method use to find the concentration of any unknown solution with the help of a…

Q: Sodium tetraphenylboron is the titrant for what precipitimetric method?

A: Sodium tetraphenylboron [ (C6H5)4 B- Na+] is soluble in aqueous solution and form clear solution…

Q: c. Experimental Procedure, Part A.5. In preparing the buret for titration the final rinse is with…

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Q: A 100.0 mL100.0 mL sample of natural water was titrated with NaOH.NaOH. The titration required 10.75…

A:

Q: What would have happened in the titration if the phenolphthalein or thymolphthalein was not added to…

A: 1) To explain: The effect of not adding the indicator phenolphthalein or thymolphthalein to the…

Q: If you had always titrated to a bright pink color, what reagent would have been in excess and how…

A: A titration is an analytical method to find the concentration of an unknown solution from a solution…

Q: Which reagent directly reacts with substance to be titrated? Method – bromometry: Br2: I2; KBr;…

A:

Q: A 50.050.0 mL solution of 0.1600.160 M KOHKOH is titrated with 0.3200.320 M HClHCl. Calculate the pH…

A: The titration reaction taking place is given by, => HCl + KOH --------> KCl + H2O Given :…

Q: In the titration of CH3COOH with LiOH, which species are present at the equivalence point? O…

A: In this question we have to tell that which species present in the solution at the equivalence…

Q: You have a solution of a standardized titrant of 0.01254 M and a sample that approximately has a…

A: Given : Final concentration of titrant required = 0.01254 M Initial concentration of titrant = 0.48…

Q: If you think carefully about what happens during the course of aweak acid–strong base titration, you…

A: Since the pH of a weak base is given by the Henderson-Hasselbalch equation as  pH = pKa + log{…

Q: whats the ph and pka of these titration curves?

A: In the titration curve for the titration of a weak acid(HA) with strong base, NaOH, the pKa of the…

Q: 7. What specific chemicals are used to identify each of the methods? (Volhard's Method, Fajan's…

A: As per the rules only the first question can be answered

Q: a. Calculate the pH in the titration of 50.0 mL 0.03200 M chloroacetic acid (Ka = 1.36 x 10 ¹) after…

A: Given :-  Volume of Chloroacetic acid, ClCH2COOH = 50.0 mL  Molarity of Chloroacetic acid, ClCH2COOH…

Q: Which of the following indicates buffering in the titration given in the image below? 12 11 10 Point…

A: The word buffer has the ability of being able to resist drastic changes in pH upon addition of…

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: When is the equivalence point of a titration not at pH 7? Why does this occur?

A: An acid reacts with a base to form salt and H2O. This is a neutralization reaction. But all of the…

Q: 1. 35.0 mL 0.175 M HBr sample is titrated with 0.200 M KOH. a) Initial pH

A: A scale of measurement of the acidity or basicity of a given compound is called pH. Lower the pH…

Q: How would you know which argentometric titration is best to use?

A: The process of determination of the content of the substance based on the precipitation reaction…

Q: Why do we use a solid acid as a primary standard?

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: What is the effect of the following situations given, on the reported concentration of the HCl…

A: Given: What is the effect of the following situations given, on the reported concentration of the…

Q: Explain the importance of performing blank titration in a precipitation titration experiment

A: A blank titration is carried out by titrating a fixed and known concentration of titrant into a…

Q: In the titration of HF with NaOH, which species are present at the equivalence point? HF, NaOH, and…

A: Titration of HF with NaOH

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 should the solution of sodium bicorbonate be boiled during titration with HCl. Answer breifly…

A: In standardization of HCl , sodium bicarbonate is used. In this sodium bicarbonate and HCl is mixed…

Q: The titration on the right was performed by placing 10.00 mL solution in an Erlenmeyer flask and…

A: when a weak base is titrated strong acid, before equivalence point we get buffer solution.

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.