If the unknown consisted of Co+2, Fe+2, Sr+2, and Ni+2, which cation would completely complex with EDTA first, second, then third during the complexometric determination of magnesium.

Q: A second calibration standard solution of an iron(III) salicylate complex was prepared in two steps.…

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Q: To study the effects of a weakly acidic medium on the rate of corrosion of a metal alloy, a student…

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Q: Use the potentiometric cell below: SCE || Cu(X)2+ (aq, A = 0.500 M), lig (aq, A = 0.0010 M) | Cu(s)…

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Q: 2. What is the solubility of lead (in pM) for solid Pb(OH)2 in a sample of water containing 2.4 x…

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Q: Why alternating current is used for conductometric measurements? What will happen if large…

A: (f)  When DC current is used, it cause the polarization of electrodes and electrolyte which leads…

Q: Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this…

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Q: out of Sc^3+ ,  Ti^3+ , Mn^2+ , Fe^2+ which one is colourless in aqueous solution ?

A: The electronic configurations of the given ions are

Q: The [IO-3] in a saturated solution of Ce(IO3)3 is 5.86 × 10–3 M. Calculate the Ksp for Ce(IO3)3 .

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Q: Write the charge balance for a solution of lead(II) iodide containing the species Pb2, I, PbI,…

A: Pb represents lead which is a metal. It can show a valency of maximum 2.

Q: Explain briefly 1. In measuring the cell potential of a galvanic cell, what does a negative voltage…

A: The answer to the following question is-

Q: An unknown solution containing 25.00 mL of Ni2* in dilute HCI is treated with a known excess of…

A: Introduction :  This question is basically based on back titration concept . Given :  Molarity of…

Q: Account for the following : (a) La(OH)3 is more basic than Lu(OH)3 (b) Zn2+ salts are white. (c)…

A: a)  Due to lanthanide contraction, the size of Lu3+ is decreased, then, the covalent character of…

Q: What would happen to CaBr2 + Ni(NO3)3 --> NiBr3 + Ca(NO3)2 , if another CaBr2 was added?

A: According to Le-Chateliers principle, if reactant added in the reaction mixture then the reaction…

Q: solubility product expressions

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Q: If 50.0 mL of 1.00 x 10-5 M Fe3+ in a buffer were to be extracted with 5 equal 25.0 mL portions of…

A: The objective of the question is to find the pH of the buffer that would allow for the removal of…

Q: Formation of a red color upon addition of KSCN confirms the presence of which metal: aluminum,…

A: Formation of a red color upon addition of KSCN confirms the presence of iron metal.

Q: The wall of a glass beaker contains ≡Si-OH groups. Why are dilute solutions of metal ions (pH > 7)…

A: Given: The wall of a glass beaker contains Si-OH groups.

Q: Determine the alkalinity of a 1M solution of (a) H2CO3 (b) Na2CO3 For this problem, pKa,1 = 6.3 and…

A: The alkalinity of a solution means its pOH value.

Q: If 26.30 mL  of 0.0100 M  KMnO4is required to titrate a 0.350 g  sample of K3[Fe(C2O4)3]⋅3H2O,⋅what…

A: Reaction between KMNO4 and oxalate is given.

Q: In complexation volumetry, classify the statements below as true or false. Justify the one(s) that…

A: EDTA i.e. Ethylenediaminetetraacetic acid is a well known metal-chelating agent, it is hexadentate…

Q: 0.7682 g MgCO3 is dissolved in 1000 mL water, 50 mL of this solution is taken and titrated with…

A: • Since, here is given that MgCO3 is taken as 0.7682 gm and its aqueous solution has been made in…

Q: Which of the following statements is not true?

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Q: If an unknown consisted of Co+2, Fe+2, Sr+2, or Ni+2, which cation would completely complex with…

A: Given cations: Co+2, Fe+2, Sr+2 and Ni+2.

Q: equivalent point, 25.00 mL of 0.10 M EDTA is required to titrate 50.00 mL of calcium in body fluid…

A: Calcium react with EDTA to form calcium EDTA complex in stoichiometry ratio of 1:1.

Q: Lead poisoning in children used to be treated with intravenous injections of EDTA. If the…

A: The molar mass of unknown compound is 122.3417 g/mole.Given that,Concentration of EDTA in the blood…

Q: As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock…

A: The reaction taking place will be, MgOH2+EDTA4-  → MgOH2EDTA4- Calculate number of moles of EDTA: 1…

Q: Given the unbalanced reaction Cu2O3 + Cl- ⇌ Cu2+ + HClO2, which takes place in acidic solution, what…

A: In the balanced chemical equation, the number of all the atoms are same in both reactant and product…

Q: 0.7682 g MgCO3 is dissolved in 1000 mL water, 50 mL of this solution is taken and titrated with…

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Q: State the principle on which each of the following processes operates: (i) Recovery of silver after…

A: To eliminate pollutants from the metals the way toward refining is finished. The extensively…

Q: Consider the titration of Fe21 with Ce41. (a) Write a balanced titration reaction. (b) Write two…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: Give information about the structure of EDTA and the titrations with EDTA (indicators used,…

A: Titration is the slow addition of one solution of a known concentration to a known volume of another…

Q: Describe how we can prepare 250 ml of 500 ppm Na* from Na2CO3?

A: The solution is shown below.

Q: (TRUE OR FALSE) In the electrolysis of aqueous KBr, the two competing reactions in the anode are…

A: 1) In the electrolysis of aqueous KBr, the two competing reactions in the anode are the oxidation of…

Q: Predict the pH(>7,<7,=7) of the following solution: NaBr, K2SO3, NH4NO2, Cr(NO3)3

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: To study the effects of a weakly acidic medium on the rate of corrosion of a metal alloy, a student…

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Q: Calculate the potential of the solution in the titration of 50.0 mL 0.100 M Fe2+ in 1.00 M HClO4…

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Q: The simple cation AI3+ actually exists in water as the complex cation [Al(H2O)6] which is of the…

A: If the pH were adjusted to 5.5 then the solution will be acidic and there will be plenty of…