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

Q: What is the difference between the endpoint of a titration and the equivalence point?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The pH at the half equivalence point in an acid-base titration was found to be 4.25. What is the…

A: pH = pKa + log {[conjugate base]/[weak acid]}  pka = -log ka  Ka = 10-pka

Q: What is the pH (give a number) for the acetic acid - sodium hydroxide solution in the flask when the…

A: Given: Titration of Acetic acid­ – Sodium hydroxide.

Q: The director of a chemical analysis laboratory is told to expect a large number of samples for which…

A: Fajan's method is an analytical method to determine quantity of halogen ion in the sample. In this,…

Q: 11. Which of the following statements are true regarding an acid-base indicator? (Select all that…

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Q: At the equivalence point for the titration of HCN with KOH, the pH is expected to be A) 7 B) greater…

A: To expect the PH

Q: Explain the difference between the equivalence point and the end point ofa titration.

A: The difference between the equivalence point and the end point of a titration has to be given.

Q: When titrating a weak acid with a strong base, it is found that the equivalence point happens when…

A: equivalence point of any acid base titration is that point where equal no of moles of both the…

Q: What is the pH a buffer solution containing 0.35 M acetic acid and 0.39 M sodium acetate where the…

A: The given buffer solution is a mixture of weak acid acetic acid and its salt  sodium acetate. The pH…

Q: What volume of KOH is needed to reach the second equivalence point during the titration of 75 ml of…

A: Since density of the solutions are not given, thus considering the molal solution to be equivalent…

Q: Describe the difference in the titration curve between an acetic acid titration and a sulfurous acid…

A: Given: To differentiate in the titration curve between an acetic acid titration and a sulfurous acid…

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: Give three uses of acid-base indicators. State two properties of acid-base indicators that make them…

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

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Q: What ratio of NaCN to HCN is needed to prepare a pH 10.00 buffer? (Ka of HCN is 4.9 x 10 10)

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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: 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: At what point in the titration have you reached when 40.0 mL of 0.250 M KOH has been added to 45.0…

A: Answer: This question is based on acid-base titration in which we have to find out, at which point…

Q: In the titration of the weak acid (HA) by NaOH, what important species' concentration increases…

A: The point in titation in which the amount of added titrant ( NaOH) neutralize the analyte solution (…

Q: For a hypothetical buffer prepared from acid-conjugate base components with pKa of its acid…

A: Given,  pKa of the unknown acid = 4.56  Which pH range would it be expectedly most effective = ?…

Q: calculate the pH at the equivalence point for the following titration: 0.20M HCL versus 0.20M…

A: Ka= Kw/Kb CH3NH2 +HCl ------>CH3NH3+ + Cl-

Q: Explain the factors that need to be considered in choosing the possible analyte-titrant-indicator…

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Q: why was there a large change in pH when you added to 11 mL of 1 M HCl to your buffer

A: A buffer solution is the solution which maintains the pH of the solution by resisting small change…

Q: In analyzing a 0.003 weak acid by titration with 0.00300 M NaOH, why would you be able to obtain…

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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: 8. State True or False. In the titration of a weak acid with a strong base, pKa of the weak acid…

A: The equivalence point is the point where the number of moles of acid and base is approximately…

Q: How does the titration curve of a monoprotic acid differ from that of a diprotic acid?

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

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: Give 3 uses of buffer solutons or instances where they are important.

A: What is Buffer Solution? The buffer solution is a solution able to maintain its Hydrogen ion…

Q: choice of indicator for acid base titration ?

A: We know that the selection of indicator is  pH lies between PH=pKin-1 to pkin+1 hence its depends on…

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: What mass of sodium benzoate should you add to 150 mL of .15 M benzoic acid solution to obtain a…

A: A Buffer solution is mainly a mixture of a weak acid and its conjugate base or a mixture of weak…

Q: What is the effective pH range of a buffer (relative to the pKa of the weak acid component)?

A: The effective pH range of a buffer in relation to pKa of the weak acid component should not differ…

Q: You need to prepare a solution that is buffered at pH=9. If you were to look for a suitable buffer,…

A: Our target pH is 9. The best buffer solution to be selected for a desired pH has the below…

Q: نقطة واحدة In a titration of a weak acid with a strong base, what is the pH of the solution at the *…

A: Given: Case1: Titration of weak acid and strong base.  Case 2: Some of the titration conditions :…

Q: Calculate the pH during the titration of 20.00 mL of 0.1000 M ethylamine, C2H5NH2(aq), with 0.2000 M…

A: Volume of ethylamine = 20.00 mL  Molarity of ethylamine = 0.100 M Molarity of nitric acid = 0.200 M…

Q: Which indicator would be most appropriate for the titration of ammonia (pKa=9.3) and HCl? The…

A: Please find your solution below : Titration is a method of quantitative analysis which is used to…

Q: What is the difference between the endpoint and the equivalence point in a titration?

A: A quantitative analysis where the amount of substance is calculated by measuring the volume is…

Q: Why does an acid-base titration curve (pH versus volume of titrant) have an abrupt change at the…

A: Please find your solution below : Equivalence point is a point in titration at which the amount of…

Q: Is it possible to prepare a buffer consisting of only carbonicacid and sodium carbonate?

A: Buffer is defined as an aqueous solution consisting of the mixture of weak acid and its conjugate…

Q: What is the pKa of the weak acid from t

A: From the given graph it is clear that, The pH at half equivalence point is approx 9.5 i.e pH = 9.5

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: 7- In acid-base titration, the Phenolphthalein indicator will change its colour from what to what? *…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: Describe how you would determine the dissociation constant of a weak monoprotic acid from a…

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Q: In the titration of a 25 mL sample of a 0.100 M solution of formic acid with 0.100 M strong base,…

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Q: The Kb of a base is 3.9 × 10−5. What is the pH at the half-equivalence point of the titration of…

A: Here kb is small so it is weak base.  Thus  We have titration of weak  base and strong acid.

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 titration curve steepest at the equivalence point?

A: Equivalence point in the titration curve: It is the point in the titration at which the analyte…

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…