Which of these indicators is best suited to distinguish between a solution that is slightly acidic and one that is slightly basic?

Q: Write the balanced NET IONIC equation for the reaction that occurs when nitric acid and potassium…

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Q: Calculate the mass of sodium acetate (CH3COONa) required to prepare 35 mL of a 0.15 M sodium acetate…

A: Given data: Sodium acetate concentration = 0.15 M Volume = 35 mL Molar mass of sodium acetate =…

Q: What is the pH of a buffer solution containing 0.21 M HNO2 and 0.10 M NO, ?

A: Since HNO2 is a weak monoprotic acid with pKa = 3.15  And the solution is given buffer solution with…

Q: Phenolphthalein is an indicator that dissociates in water. Explain the color change observed at the…

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Q: The useful pH range for a typical indicator is ________ 14 2 4…

A: pH is also called as the power of H+ ions. The pH value tells us about the acidic or the basic…

Q: Topic: Acid-Base Titration a. Differentiate between acidimetry and alkalimetry? b. Define titer.

A: Titration can be defined as process of measuring volume of a solution of known concentration which…

Q: 1. Describe clearly why a single indicator solution is only useful for measuring pH over a rather…

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Q: Why were phenolphthalein chosen to be the indicator? What can other possible indicators substitute…

A: Typically, weak protolytes that change colour in solution in response to pH are used as acid-base…

Q: 5. An Indicator Molecule Br Br OH HO, -Br Br = 4.89 pK. Yellow pH 5.5 Shown above is a molecule…

A: The given molecule is an acid-base indicator.

Q: Which of the following are capable of forming a buffersolution?a. NH3and NH4Cl b. HNO3 and KNO3

A: We know, a buffer consists of weak acid and its conjugate base (acidic buffer) or weak base and its…

Q: What is the percentage of a total acid expressed as acetic acid (HC2H3O2) in a sample of vinegar if…

A: The quantitative chemical reaction of an acid and a base with each other is known as neutralization…

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.404 M nitrous acid…

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Q: The distribution of a pH indicator that is an acid (i.e. Hln) depends on the pH of the solution that…

A: Answer is in step 2

Q: Define acid–base indicator

A: Titration is a technique of determining the unknown concentration of one solution from the known…

Q: Which of the following aqueous solutions are good buffer systems?

A: Buffer solutions:  A solution which resists it's pH by addition of small amount of Strong acid…

Q: The addition of Hf and ___ to water produces a buffer solution.  KOH KNO3 NaCI HBr NaBr

A: The solutions get prepared through mixing of weak acid+conjugate salt or weak base+conjugate salt…

Q: When standardizing a NaOH(aq) solution using KHP, a student added too much base, causing the…

A: To determine: Standardization of NaOH solution using KHP , what will happen if base is added.

Q: indicators and gives the following results. V is the approximate pH range of the solution (Use the…

A: Interpretation: We have to define the pH for indicators.

Q: KH2PO4 and K½HPO, can be used to prepare a buffer system. True O False

A: A buffer system is used to maintain constant pH of the solution.

Q: Given: A magnesium hydroxide solution is prepared by adding 12.00 g of magnesium hydroxide to a…

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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: In case carbonate is found in sodium hydroxide solution, what should be added to remove it?

A: Both compounds are bases so there will not be any reaction between them. About the only thing that…

Q: Calculate the pH of the following solution when the 2 reagents are mixed: 25.00mL of 0.550M KOH…

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Q: The phenolphthalein pH indicator is clear and colorless in an acidic solution, but it turns a pink…

A: Given: Acidic solution contains phenolphthalein and you add a drop of Solution 1 to Solution 2. A…

Q: What other factors do you need to consider when assessing feasibility of titration?

A: The factors are :-  i) Titration reactions mixture must be rapid. ii) Reaction mixture must be…

Q: Calculate the pH of a buffer solution that is 2.00 M in phosphoric acid and 1.50 M in potassium…

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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: Which graph best represents the titration of ammonia with hydrochloric acid?

A: Ammonia is a weak base and HCl is a strong acid . Titration of Ammonia with HCl is explained with…

Q: For a titration to be effective, the reaction must be rapid and the yield of the reaction must…

A: Interpretation- Blanks in the sentences are to be filled with appropriate options.

Q: Which of the following statements concerning acid-base indicators is true? Select one: a. All the…

A: Acid‐base indicators are generally known as an indicator or PHindicators, these are those…

Q: What is the pH range and color change for crystal violet (methyl violet) as an acid-base indicator?…

A: To answer: What is the pH range and color change for crystal violet (methyl violet) as an acid-base…

Q: Describe the basis of buffer action and indicator detection.

A: To find: A description about the basis of buffer action and indicator detection

Q: . Describe the selection of a proper indicator , refer to the following points .what is an indicator…

A: Note: since you have posted a question with multiple subparts, we will solve first three parts for…

Q: What pH would be measured from a solution that is made by mixing 100.0 mL of 0.050 M NaC2H3O2 and…

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Q: Consider the spectrophotometric pH measurement of seawater with the indicator thymol blue…

A: pH = [A1]/[A2] + pKa [A1]= absorbance of In2- [A2] = absorbance of HIn- Henderson-Hasselbach…

Q: Which of the following titration curve represents a weak acid and strong base?

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Q: d) please see attached question concentration KOH=20.8325mL pH solution=2.9 beginning of the…

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Q: A student has a sea water sample which contains Ca2 ions . Describe briefly how he will determine…

A: To determine the concentration of calcium ions, we have to perform titration with EDTA solution. In…

Q: 3. Indicate the principle that imposes the formation of the HIn species upon the addition of an acid…

A: According to Le Chatelier’s principle, “When a system experiences any disturbance in the equilibrium…

Q: Give the Van Slyke's Equation for: Strong acid solutions as buffer (applicable if pH < 3)

A: We have to give the Van Slyke's equation for the strong acid solutions as buffer as follows in step…

Q: 1 mL of 0.01 M NaOH and 1 mL of 0.01 M CH3COOH are mixed. What is the pH of the solution. Explain…

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Q: What is an acid–base indicator?

A: As per our guidelines,  you have posted multiple questions we can only answer first one.

Q: Question attached

A: Acid-base indicators are chemicals that are often used in a titration to determine the endpoint of…

Q: Which solution has the greatest buffer capacity? Which solution can react with the largest amount…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: One characteristic of blood that we rarely give a thought to is its pH. The pH of blood must be held…

A: Buffer is a solution that resists the change in its pH when small amount of acid or base is added to…

Q: Which statement about acid-base indicators is not correct? *       A- A weak acid can be used as an…

A: Acid-base indicators made of weak acids and weak bases. Due to common ion effect.

Q: 125 mL of 0.3 M HC1 was mixed with 320 mL of 0.15 M NaF. What is the pH of the solution after…

A: Given data : Concentration of HCl = 0.3 M Volume of HCl = 125 mL Concentration of NaF = 0.15 M…