Why do you add NaHCO3 to the sample solutions in the determination of chloride by the Mohr Method (Analytical Chemistry)

Q: A 1.00-L solution saturated at 25 °C with calcium oxalate(CaC2O4) contains 0.0061 g of CaC2O4.…

A: Given: Mass of CaC2O4 = 0.0061 g Molar mass of CaC2O4 = 128.09 g/mol Volume of solution = 1.00 L

Q: If you needed to perform a reaction in a controlled pH environment that was fairly basic, you might…

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Q: A saturated solution of Mg(OH)2 in contact with undissolved Mg(OH)2(s) is prepared at 25 °C. The pH…

A: The solubility reaction of  Mg(OH)2 is given by  =>  Mg(OH)2 (s) --------> Mg2+ (aq) + 2 OH-…

Q: Discuss whether the equilibrium constant for the dissociation of lichlorine will be larger for 37CI2…

A: The question is based on the concept of chemical bonding. we have to decide which of the given…

Q: What is the basis of the ‘40000’ in the equation? Note: this is about "DETERMINATION OF WATER…

A: Interpretation: To find out the basis of 40000 used in the equation given.

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

A: Introduction Mohr's method is used to determine the chloride ion concentration with the help of…

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: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…

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Q: Considering only the equilibrium HgBr21s2 Δ Hg21 1 2Br2, and includingactivity coefficients,…

A: The solubility product of HgBr2 is equal to 6.2 × 10-20. On dissolving this salt in a solution of…

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

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Q: what is the colour of the CuCl when it is filtered on the Buchner funnel?

A: Given : To determine the colour of CuCl when it is filtered on the Buchner funnel.

Q: Will lead(II) chloride (PbCl2) precipitate when 325 mL of a 0.145 M solution of Pb(NO3)2 is added to…

A: 325 mL of 0.145 M PbNO32solution is added to the 185 mL of 0.0425 M NaCl solution.Ksp of PbCl2 is…

Q: A student did not notice that the test tube in which she obtained her saturated calcium iodate…

A: The Ksp value of Ca(IO3)2 can be expressed as: Ksp = Ca2+IO3-2

Q: Write the reaction and Ksp expression for dissolving copper(I) sulfide in water.

A: The answer is given below.

Q: For the aqueous [Ni(NH3 )6]2+ complex Kf=5.50 x 108 at 25C . Suppose equal volumes of 0.0024 M…

A: Given :  Kf = 5.50 x 108   Concentration of Ni(NO3)2 = 0.0024 M  Concentration of NH3 = 0.94 M

Q: Percent variance for Kc for Fe3+ + SCN- Fe(SCN)2+ = 110%, the average value for kc = 186 Percent…

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Q: What is the Ksp expression for the dissolution of AgBr?

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Q: A saturated AgCl solution was analyzed and found to contain 1.25 x 10-5 M Ag+ ions.  Use this value…

A: We know that, Ksp is the solubility product of any salt, and is as below :  For a reaction, AgCl…

Q: Why did the colour of the solution in the conical flask change at the end of the titration?

A: In the titration there is color change at the end.

Q: Why did the color of the solution in the conical flask change at the end of the titration?

A: Titration : The method used to determine the concentration of a known substance using another,…

Q: Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a…

A: Given - - > Concentration of NaF = 0.095 M Now CrF3 = [Cr3+] [F-]

Q: Calcium Iodideand Sodium Oxalate may have led to the pain that the patient was experiencing.…

A: In this case, it is mentioned that the substances calcium iodide and sodium oxalate are present as…

Q: Using the concentrations 0.100M and 0.1766M, and the pKa of 3.752, what is the theoretical pH of a…

A: pKa = 3.752

Q: Explain briefly in 2 sentences andin your OWN words. 1. NH4CNS used in the test for cobalt must be…

A: Gravimetric analysis is one of the most accurate analytical methods available. It is concerned with…

Q: Acetic acid, HC2H3O2 (aq), was used to make the buffers in this experiment. Write the ionization…

A: Buffer solutions are geenrally used to  control the pH change of the solution. It resist to change…

Q: Acetic acid, HC2H3O2 (aq), was used to make the buffers in this experiment. Write the ionization…

A: Ionisation Equation of Acetic Acid

Q: I need help with this question

A: Solubility is the measure of the extension of being soluble of a compound in a solvent. It can be…

Q: Why homogenously formed precipitates are better suited for analysis than a precipitate formed by…

A: The gravimetric method is inherently more accurate than the volumetric method because the…

Q: What is selective precipitation?  What is confirmatory test and its significance?  What are the…

A: In selective precipitation only specifically the one which is desired is precipitated in presence of…

Q: Why is sodium oxalate the primary standard for the determination of concentration of KMnO4 solution?

A: Primary standard is the chemical compound which is used in the determination of amount or…

Q: the solubility of silver sulfate in water is determined to be 570 mg/100mL determine its KSP

A: The Answer to the following question is-

Q: What do you call the number that summarizes the factors affecting the particle size of a precipitate…

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Q: Explain why in Mohr's method neutral medium should be used in titration of AgNO3?

A: Mohr's method is the method to determine the chloride ion concentration of a solution by titration…

Q: Solid KSCN was added to a(2.20x10^0) M Co2+ solution so that it was also initially (2.20x10^0) M…

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Q: at  25C temp 7.8x10-5 mol of silver chromate dissolves in 1L of H2O. Calculate the Ksp of silver…

A: Given information, Moles of silver chromate = 7.8*10-5 mol Volume of H2O used = 1.0 L

Q: It is found that 8.70e-09 g of Ga(OH)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate…

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Q: 1. Write the complete chemical reaction with states and Ksp expressions for Ca2 and Ag+ precipitated…

A: Given,  Two cations are : Ca2+ and Ag+  Write their Ksp expressions when they form precipitates with…

Q: 1. What is the role of chromate ions in chloride determination? 2. Why pH range is important in…

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

Q: 1o A 5 cm sample of 0.05 mol dm3 sodium chloride is mixed with a 5 cm3 sample of 0.05moldm potassium…

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Q: Calculate the pH of the NH3/NH4Cl buffer after the addition of NaOH. How does it compare to the…

A: The pH of a basic buffer solution is determined using the Henderson-Hasselbalch equation - pOH =…

Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…

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

Q: sample of 0.0500 M barium nitrate solution and 0.0500 M sodium sulfate solution was labeled with…

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Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…

A: Hi there, as there are multiple questions posted. We are answering the first 3 sub-parts. if you…

Q: A saturated AgClAgCl solution was analyzed and found to contain              1.25 x 10-5 M Ag+AgX+…

A: In saturated solution, []Ag+] = [Cl-] = 1.25 * 10^-5 M gCl ........> Ag+ + Cl- Ksp = [Ag+][Cl-]

Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…

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

Q: Inorganic Chemistry: Qualitative Analysis of Anions What is the importance or purpose of adding…

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Q: What is the acid/base ratio? Why is it important in the titrimetric process?

A: Acid base ratio is the exact amount of acid and base required to obtain a desired pH. This value can…

Q: Write the Ksp expression for Cu(OH)2 in terms of [Cu2+] and [OH–].

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Q: Which of the following statements is true regarding permanganimetry?   a) Permanganate solution can…

A: Permanganate ion, MnO4-is an extremely strong oxidizing agent. It has the ability to oxidize water…