(i) Give a definition for an acid-base indicator. (ii) List two examples of acid-base indicators that you are familiar with, and outline the colour changes you would expect to see when using these indicators.

Q: Complete and balance the precipitation reaction. Include physical states. Refer to the solubilities…

A: Answer:- This question is answered by using the simple concept of precipitation reaction in which a…

Q: The pH of a certain solution is 4.5. What is the concentration of H+(aq) ions in the solution?

A: Since pH = -log[H+] where [H+] = concentration of H+ (aq) ions pH given = 4.5

Q: What name is given to the chemical species that changes colour when its pH changes? O Acid Base…

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Q: ulate K for

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Q: Suppose that extra volume (more than the actual volume) of 0.2 M NaOH solution was used to reach the…

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Q: What is the aqueous molar solubility of leau(i, = 4.00x10-36 Kop Pb3 (AsO.),(6) 3PB²*(aq) + 2ASO…

A: Ksp = [Pb2+]3  [AsO43-]2 using this formula we can calculate the molar solubility

Q: What is the correct balanced equation for the neutralisation of NaOH and HCl?

A: ANSWER IS DISCUSSED BELOW :

Q: Potassium sorbate,KC H,O, (molar mass 150. g/mol) is commonly added to diet soft drinks as a…

A: Solution: Dissociation expression is a dissociation constant ( equilibrium constant). For acid…

Q: In the titration calculation, moles of KOH were calculated from the known molarity and measured…

A: Given : moles of succinic acid has been calculated in the procedure  To find : mass of Succinic acid…

Q: (a) devise a flow chart or schematic diagram to separate and confirm the presence of the given ions…

A: It is a method of identifying and classifying elements into a group from a solution provided through…

Q: Complete and balance the following equation. (All stoichiometric coefficients must be integers.)…

A: A chemical reaction in which the number of atoms present on the left hand side of the equation is…

Q: Briefely explain the meaning of the following terms as they relate to this experiment. a) Titration…

A: The brief explanations are given below -

Q: The student observed that, addition of Barium chloride solution to an aqueous solutions of samples D…

A: The  samples which form a white precipitate with Barium chloride has to be given,

Q: Titration of a 10.0 mL sample of acid rain required 2.1 mL of 0.0824 M KOH to reach the end point.…

A: Given: Volume of sample is 10 mL. Volume of base is 2.1 mL. Molarity of base solution is 0.0824 M.…

Q: Given the mole ratio of HCl to NaOH is 1:1 in the balanced acid base reaction A 15.52mL sample of…

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Q: Determination Of The Acid Content In Vinegar  -Would the concentration of the vinegar solution be…

A: If the volumetric flask used to dilute the original concentration of vinegar contained some water,…

Q: In a gravimetric determination of a soluble sulfate the data gathered is presented (see attachment).…

A: To calculate the mean of trials for sample 1 and 2 for empty crucibles and crucibles with…

Q: Suppose that 4 g of solid Fe2O3 is added to 25 mL of 0.5 M HClsolution.   What mass of Fe2O3 will…

A: Reaction of Fe2O3 with HCl take place as  Fe2O3  + 6HCl  ----->  2FeCl3   + 3H2O Given mass of…

Q: A 13.8 mL solution of 0.176 M phosphoric acid (ag) is to be titrated with 0.384 M sodium hydroxide…

A: The given data contains, Molarity of phosphoric acid = 0.176 M. Volume of phosphoric acid = 13.8 ml.…

Q: When acetic acid dissolves in water, the solution is weakly conducting and acidic in nature. True or…

A: Electrolytes:Ionic compounds dissociate in to two different ions like cation and anion, therefore…

Q: In the following table, predict the identity of any precipitates formed when aqueous solutions at…

A: A chemical reaction occurring when two ionic compounds combine to form an insoluble salt is called a…

Q: magnesium nitrate, Mg(NO,),(aq), solution

A: This question is related to precipitation.

Q: The following chemical reaction takes place in aqueous solution: AgF (aq)+NH,Br(aq)…

A: Write net ionic equation of the given reaction---

Q: 7.7.3 Zinc sulfate eye drops Zinc sulfate solution has been traditionally used as an astringent and…

A: In this case, the quality of Zn2+ ions in the eye drops is being checked. By quality, we mean we…

Q: Acetic acid is a covalent compound but, when dissolved in water, it is a weak electro- lyte. How…

A: Since polar compounds dissolve in a polar solvent and nonpolar compounds dissolve in a nonpolar…

Q: If a universal indicator was added to H2O (l) + CO2 (g) → H2CO3 (aq) what color would the solution…

A: When we add carbon dioxide gas to liquid water, then solution become acidic. Solution become acid…

Q: After studying the separation scheme for Group III cations and using your background knowledge on…

A: It is a method of identifying and classifying elements into a group from a solution provided through…

Q: What colour is the resulting solution when the universal indicator is added to water? What colour is…

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Q: In the course of various qualitative analysis procedures, the following mixtures are encountered:…

A: It is given that in a qualitative analysis procedure, mixtures are there which contain Ag+ and Mn2+…

Q: Make a complete schematic diagram for the precipitation, separation, and identification of Group V…

A: Answer -  Group V Cations - Group 5 cations are magnesium (II) Mg2+, potassium (I) K+ and sodium (I)…

Q: How many mL of the standard AgNO3 solution were used in the titration?

A: Solution: We have filled standard AgNO3 solution in burette and used for titration. In the given…

Q: What is the benefit of using a low concentration of base in titrations?

A: If we use a base having higher concentration  then the titration will happen as usual but the result…

Q: Which of the following types of redox titration involves the oxidizing agent as self-indicator?…

A: Self indicator : It is a substance in the reaction that along with self participation in the…

Q: Which of the following most closely represents a state of "Electrical Equilibrium", in a system…

A: In a solution, when an ionic solute is added, it undergoes dissociation into ions. The dissociation…

Q: Give a definition for an acid-base indicator. and List two examples of acid-base indicators that you…

A: Acid base indicator are those substance that  respond to changes in hydrogen ion concentration . Or…

Q: The chloride ion content of a 250.0-mL seawater sample was titrated against 0.1102 M silver nitrate,…

A: The Chloride ions from the seawater are titrated against silver nitrate and the objective of the…

Q: give a example of a acid-based titration and give a equation

A: An acid is a substance that can release H+ ions in the solution and a base is substance that…

Q: Write all the reactions involved in the Mohr's method, if an unknown solution containing chloride…

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Q: Q9 solubility products for the following compounds: (a) SrF,, 6.3 x 10 g/L, (b) Ag:PO1. 5.7 x 10…

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Q: Which of the following sentences is correct? O PbCl2 in water is soluble and weak electrolyte. O…

A: The correct statement is:

Q: Which of the following is NOT trie about REDOX titration? I. It is type of titration in which the…

A: Redox reactions are the ones in which one reactant gains electrons whereas the other looses…

Q: A student is planning an investigation of an acid-base reaction. Which of the following is not an…

A: Given Methods Are   pH meter Conductivity meter pH paper Visual Chemical indicator

Q: In titration, one solution is added to another solution until a chemical reaction between the…

A: The balanced chemical equation for the reaction between the given acid and base is shown below.…

Q: CaCin The calcium carbonate sample is heated in the oven for 30 minutes, cooled, and then weighed.…

A: The calcium carbonate (CaCO3) sample is heated in the oven for 30 minutes, cooled, and then weighed,…

Q: Which of the following is a different indicator as a indicator? A. Methyl red B. Methyl orange C.…

A: Indicator is a compound that is generally used to indicate the completion of the reaction in the…

Q: By titration it is found that 76.7 mL of .151 M NaOH(aq) is needed to neutralize 25.0mL. Calculate…

A: Given information: The volume of HCl is 25.0mL The concentration of NaOH is 0.151 M The volume of…

Q: Make a complete schematic diagram for the precipitation, separation, and  identification of Group…

A: The group III cations are Mn3+, Fe3+, Al3+, Zn2+, Co2+, Ni2+ and Cr3+.

Q: Three aqueous solutions are mixed, 1.0 M (NH4)2SO4, 1.0 M Sr(OH)2 and 1.0 M CoCl3. The two…

A: Solubility - it is the tendency of any ion / compound to solubilize in a particular solvent .…