The indicator phenolphthalein may be regarded as a weak monobasic acid. Explain briefly why the indicator is coloured pink when the solution in which it is present has excess of alkali.

Q: n determination of mixed alkali, does adding H2O to the analyte can afect the process of titration?

A: Titration is an analytical method to determine the concentration of an analyte.

Q: A solution may contain, chloride, carbonate, phosphate, and or sulfate ions. No effect is observed…

A: 1) As no impact is seen upon the expansion of 6M HNO3, it affirms that CO32-is missing. In the event…

Q: A few drops of phenolphthalein indicator were added to an unknown solution A. It Acquired pink…

A: Phenolphthalein is a chemical compound and is often written as "HIn" or "phph" in shorthand…

Q: Why is the use of high-precision volumetric material essential for titration?

A: Volumetric analysis is a technique used to determine the unknown concentration of a reactant with…

Q: Match the relational phrases to the corresponding concepts. Zwitterion Isoelectric Titration point…

A:

Q: Use the systematic treatment to get the concentrations of all the species in a solution of: a.)…

A:

Q: Give six differences between tituration and levigation

A: Six differences between trituration and levigation- 1) Triturate is the continual rubbing of a solid…

Q: Is there a difference when the needle or metal clip is placed on the surface of distilled water with…

A:

Q: Assuming complete dissociation of the salts, calculate the ionic strength of (a) 0.2 mM KNO3; (b)…

A: a.

Q: Determination of sodium carbonate by acidimetric titration involves: Direct titration by acid…

A: Process of determination of sodium carbonate by acidimetric titration: CO32- + H+ → HCO3- HCO3- + H+…

Q: The above plot-is a Bjerrum.difference plot-for the-titration-of-glycine. Why does n…

A: Given in the Bjerrum difference plot for the titration of glycine.

Q: In complexometric titration ‘the reaction with analyte should be rapid and complete’ give reason…

A: Complexometric titrations are those titrations in which chelates or soluble complexes, usually…

Q: DURING NITRITOMETRIC TITRATION, THE ADDITION OF CHLORIDE ACID (HCI) TO THE REACTION MIXTURE…

A: Nitritometry is the method based on the reaction which occurs in the acidic medium as follows:…

Q: Briefly explain why the sparingly soluble product mustbe removed by filtration before you…

A: In Volhard's determination of the ions, the sparingly soluble ions must be removed by filtration…

Q: Jon 24 The colour exhibited by Bromo cresol indicator in acidic and basic medium is

A: Indicator have different colour in acidic and basic medium

Q: Using the graph given, suggest a complexometric method for determination of each component in a…

A: Complexometric titration (sometimes chelatometry) is a form of volumetric analysis in which the…

Q: 4. The molar absorptivities of the indicator weak acid HIn (K_{a} = 1.42 * 10 ^ - 5) and its…

A:

Q: What is/are the principle/s involved on ACIDIMETRIC ASSAY BY DOUBLE INDICATOR TITRATION?

A: Titration is a common laboratory method of quantitative chemical analysis to determine the…

Q: 4. The molar absorptivities of the indicator weak acid HIn (K₁ = 1.42 x 105) and its conjugate base…

A:

Q: what titrant will you use in preparing a substance with a pH of 7(green) whereupon the addition of…

A: Bromothymol blue is a pH indicator which is used to measure substances that have a neutral pH. It is…

Q: What will happen if large quantities of indicator solution are used for the determination of pH by…

A: To explain: What happens if large quantities of indicator solution is used for the determination of…

Q: Using the graph given, suggest a complexometric method for determination of each component in a…

A: complexometric titration: An indicator capable of producing an unambiguous color change is usually…

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

A: To find out the alkali present and the percentage of NaOH, Na2CO3 and NaHCO3 in the sample 3 and…

Q: d. A similarly strongly basic solution is made with the limestone and 0.1 M of Na2CO3 yielding a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: Sketch a plausible predominance diagram, over the pH range -2 to 16, for arsenic in the 3+ oxidation…

A: As in +3 state can exist as either of the following species:   H3AsO3or,H2AsO3-

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

A:

Q: An antihistamine sample, brompheniramine maleate, weighing 5.01234 g was dissolved in alcohol and…

A: Mass of an antihistamine sample, Brompheniramine maleate = 5.01234 g  Molarity of AgNO3 = 0.3121 M…

Q: Given the chemical equation for the anthocyanin extract of red cabbage as an indicator. HIn + H2O ⇌…

A: An indicator is a substance that tells you how acidic or basic a solution is. These are mainly weak…

Q: Condition of permanganatometric titration of sodium oxalate includes: pH = 1 and heating of analyte…

A: Permanganatometric titration is a technique used in chemical quantitative analysis. It is a type of…

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

A: To find the alkali present and and the percentage of NaOH, Na2CO3 and NaHCO3 in the sample 4.

Q: Explain the reason behind the addition of the starch indicator near the endpoint for this analysis.…

A: Starch is an indicator used in iodometric titration and it turns dark blue when iodine is present in…

Q: Determination of phenobarbital by the alkalimetric method (titration in alcohol).

A: Phenobarbital is a drug with the chemical formula C12H12N2O3 . It is commonly used to treat and…

Q: A solution containing Mg2+ was buffered to pH 9.75 and titrated with EDTA. Eriochrome black T, with…

A: EBT is used as metal ion indicator.

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

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

Q: Change of indicators colour is related to the change of the .A Structure .B Intramolecular…

A:

Q: B) A mixture of AP" and Mg* in a sample of water. Explain a procedure to analyse this mixture using…

A: In a sample of water, there are many ions like calcium, magnesium and aluminium is present. Many of…

Q: Using the graph given, suggest a complexometric method for determination of each component in a…

A: Complexometric titration (sometimes chelatometry) is a form of volumetric analysis in which the…

Q: (iii) The pH range of phenolphthalein is 8.2 -10. Give an acid and an alkali for which…

A: When we perform a acid base Titration between a strong acid and a strong base, the pH range near…

Q: Q1 (a) Consider following sentences as true or false. Briefly justify the answer. Acetic acid is a…

A: Acidic strength is a measure of ka value. Aromatics compound burns with sooty flame. Normality,…

Q: Determination of Water Hardness experiment was designed and suitable for bottled mineral water. What…

A: Principle: The determination of hardness is carried out by titrating water sample with Sodium salt…

Q: uinine sulfate: -. Bromatometry . Non-aqueous titration in a protophilic solvent edium E.…

A:

Q: A weak acid (HA) with a pKa of 4.0 has a distribution constant of 5.2 between an organic and aqueous…

A: The fraction of HA acid in the organic phase at pH 2 and 6 is calculated:

Q: A mixture was known to contain three of the four compounds in the table.  After the mixture of the…

A: Based on the solubility of the compounds A, B and C in the various solvents such as cold water, hot…

Q: 1. Tris(hydroxymethyl)aminomethane abbreviated as Tris or TRIZMA is frequently used to make buffers…

A: Given that : Molar mass of Tris(hydroxymethyl)aminomethane  = 121.1 g/mol pH = 10.5 The pKa of…

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

A: