Questions: 1- Why must adsorbed Cl ions be washed out completely from a Fe (OH), precipitate? How is it confirmed that the washing is complete?
Q: The gravimetric analysis of nickel in copper and iron, what is the purpose of "dipping" the…
A: Gravimetric analysis is the quantitative analysis of finding the mass of a substance via selective…
Q: Question 9 Given the volume of 0.2000 M NaOH used determine the concentration of 10.00 ml sample…
A: Given, Concentration of NaOH = 0.2000 M Volume of NaOH for aqueous (Aq) layer = 12.55 mL Volume of…
Q: Question 1 An experiment to measure the molar solubility and Ksp of Sr(103)2 followed a procedure…
A: The balanced equation for the dissociation of Ca(IO3)2(s) in water is: Ca(IO3)2(s) ⇌ Ca2+(aq) + 2…
Q: 7. Calculate [Fe³*] in the solution prepared in step 12 of the procedure.
A: Since you have posted multiple questions as per guidelines we can solve only one per session . If…
Q: Explain the stepwise production of titratable I2 from dissolved O2 in the sample.
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Q: Question 15 Coprecipitation that involves foreign particles? O Surface adsorption O Inclusion…
A: As per the company guidelines, we are authorised to solve only one question at a time. Please post…
Q: 31- A solution of compound Z gives a light blue precipitate with aqueous ammonia. The precipitate…
A: Flame test of certain ions gives specific colors to the flame. When the ion absorbs the energy from…
Q: A. Give the product of the equation that is mixed with zeolite Na-X Cuso,.5H;0 + H,0 + Na-X B. The…
A: A.The above reaction Is- Cuso4.5H2O +H2O+Na-X--->CuX2+ Na2SO4.H2O
Q: 8. What color reactions are expected at the end of the equivalence point?
A: ALL THREE IS A PRECIPITATION TITRATION SILVER ION IS COMMON IN ALL THREE
Q: A student found that 0.076 g of PbF2 was dissolved in 220 . mL of saturated PbF2. What is the Ksp…
A:
Q: 1] What type of precipitate is BaSO4? [2] Why is filter paper preferred over a sintered glass…
A: Given: [1] What type of precipitate is BaSO4?[2] Why is filter paper preferred over a sintered glass…
Q: The substance to be analyzed – is white, highly soluble in water salt. Addition of diluted sulfuric…
A: The solution is as follows:
Q: 7. In the standardization of ammonium thiocyanate, 15 mL of 0.1 N silver nitrate VS was measured…
A: Iodometry is the type of titration which uses a standard sodium thiosulfate solution as the titrant.…
Q: Describe how to prepare 1L of 150.0ppm cu2+ using cu metal
A: We have to prepare a solution where the concentration of copper in the solution is 150 ppm. We hyave…
Q: You are given a solution that contains a mixture of the following cations: Ag+, Ba2+, Mn2+ and Cu2+.…
A: The Ag+ and Cu2+ ion belong to group 1st (group 1st reagent dil HCl) and group 2nd (H2S in the…
Q: 3. A student performed this experiment, and formed the solid AgoCr04. The solution above the…
A: The solubility of [CrO42-] = 6.67 × 10-5 M. The reaction is, Ag2CrO4⇌ 2 Ag++ CrO42-
Q: 8) What are the roles of MnSO4 and NaN3 in the Dissolved Oxygen determination experiment?
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Q: 10. Which of the following will not produce a precipitate when added to dilute aqueous ZnSO4 A)…
A: From this Solubility table we can solve the given question .
Q: R ter shift We will begin the anion analysis with a known solution containing I-, Cl-, and SO42-.…
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Q: Data for the preliminary tests for each metal are included below. If a precipitate was formed, the…
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Q: Determine the Ksp for Ba(NO3)2. Write a balanced dissociation equation for Ba(NO3)2 in aqeuous…
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Q: 13. At 25 °C, 4 mg of PbSO4 will dissolve in 100 cm³ of pure water. Calculate Ksp of PbSO4.
A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…
Q: 12 What will be the products of this reaction, if it occurs? Underline the precipitate if there is…
A: Given incomplete reaction; CaS + FeSO4 ----->
Q: What is the reference method for sodium and potassium determination
A: The detailed solution of your question is given below- Since, we know that the Sodium and Potassium…
Q: QUESTION 14 This is a drastic but effective way to minimize the effects of adsorbed impurities O…
A: Reprecipitation is a drastic but effective way to minimize the effects of adsorbed impurities.
Q: (a) What happens when a freshly precipitated Fe(OH)3 is shaken with water containing a small…
A: (a) Fe (OH) 3 is a precipitate.
Q: Name the reagent that will be used to dissolve CuS and Bi2S3.
A: CuS and Bi2S3 are insoluble sulphides having black and brownish black colour respectively.
Q: 5.00 mL of a water sample was titrated for hardness with 4.15 mL of 0.0200 M EDTA. How many moles…
A: Given data,Molarity of EDTA=0.02MVolume of EDTA=4.15mL=0.00415L
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: formation of white precipitate O presence of oxalate ion O addition of potassium permanganate O…
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Q: What is the indicator of the end point for the Fajans method? A green fluorescence (B white…
A: Fajans Method as,the precipitation titration in which silver ion is titrated with Halide or…
Q: To prevent inclusion from occurring during precipitation, the technique to follow is I. fiter…
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Q: What is the value of Kf for the formation of the ammine M(NH3)2? Assume the concentration of…
A: The concentration of M(NH3)n+ = 0.0020 M The straight line equation is y = - 5.9484 x – 9.26. X =…
Q: Determination of the true concentration (ppm Fe) in a water sample using the iron-phenanthroline…
A: Given: Determination of the true concentration ppm (Fe) in a water sample using Iron-phenanthroline…
Q: 15. When aqueous acidified AgNO, was added to a metal halide, a precipitate was formed which…
A: When AgNO3 is Added to the NaCl then AgCl white ppt is obtained when This white ppt gets dissolved…
Q: White Precipitate Additional Excess NaOH NaOH Precipitate Unknown Salt No Visible Reaction NH3
A: In step 1 unknown salt react with sodium hydroxide & white precipitate form, after addition of…
Q: 3. In the characterization test, it was observed that Snl4 is soluble in acetone. What does this…
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Q: QUESTION 4 To prevent inclusion from occurring during precipitation, the technique to follow is I.…
A: Inclusion are the impurities formed during precipitation. and these are present in crystal of…
Q: QUESTION 17 The following are favorable precipitation conditions for the formation of large…
A: Precipitation is a process in solution the sagregation of molecules by intermolecular force of…
Q: What is the Calcium ion & Chloride ion activity of a solution containing 0.010 M CaCl2?
A: Given, Concentration of CaCl2 = 0.010 M
Q: QUESTION 1 The coarsely crystalline type of precipitate is desirable in gravimetric analysis because…
A: The particles of a crystalline suspension tends to do spontaneously and are easily filtered. We know…
Q: The piperazine content of an impure commercial material can be determined by precipitating and…
A: Given the mass of the sample containing piperazine = 0.3126 g Balanced equation for the reaction of…
Q: 8. The concentration of B-in a saturated solution of AB3İS 1.10 x 10-Smg/L. What is the Ksp of AB;…
A: Solubility is the ability of the substance to dissolve the given solvent. Solubility product is…
Q: A solution has [Fe2+] of 0.0200 M. What concentration of sulfide is needed before precipitation…
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Q: 5 Any Cu* ions present in solution will react with FerroZine in the same way as Fe2+. a. What effect…
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Q: CALCULATION PROBLEMS Gravimetric Problems OH Ni²* + 2 + 2H* DMG FM 116.12…
A: Given data, Mass of steel taken = 0.1795 g Mass of Ni-dmg precipitate formed = 1.1634 g
Q: Why are we adding NH3 and write down the net reaction. CALCIUM PEROXIDE OCTAHYDRATE (CaO2.8H2O)…
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Q: Consider the reaction IO4-(aq) + 2 H2O(l) ⇌ H4IO6-(aq); Kc = 3.5 x 10-2. If you start with 25.0…
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- Guide Questions[1] What type of precipitate is BaSO4?[2] Why is filter paper preferred over a sintered glass filter?[3] What made an ashless filter paper ashless?[4] Why is a porcelain crucible used in this procedure?[5] Why do we need to precipitate from a hot solution?[6] Why is the precipitating agent added all at once?[7] What is the purpose of adding 6M HCl in the sample solution?[8] Why do we need to test the washings with AgNO3?[9] What is ignition?[10] What is the product after the precipitate was ignited?[11] What are the advantages of performing ignition?[12] Cite the sources of errors for this experiment and how to circumvent these problems.Why is Mg2+ Most likely to give a precipitate with PO43- explain the answercan you explain how I can get 1.596 mg/L of concentration of Fe3+ in dilutes sample and can you also make the calibration curve.
- What do the ions that gave a precipitate when mixed with AgNO3 have in common?Typical adsorption indicator that is useful for the titration of chloride ion with silver nitrate. Fluorescein b. Iodine c. Sodium Thiosulfate d. NaCl3 The gravimetric analysis of nickel in copper and iron, what is the purpose of "dipping" the precipitation in this experiment
- Why is it essential that some undissolved Ca(IO3)2 remain in the solution to be measured?1. What are some precautions that should be observed when collecting samples for DO determination, to ensure the amount of oxygen in the sample is representative of the DO at the site? 2. The standard Winkler method uses sodium iodide and sodium azide to be added at the same time as sodium hydroxide. What is the purpose of sodium azide? 3. Chlorinated tap water contains both chlorine (Cl2) and hypochlorite (OCl-) does the presence of these species affect DO results? Write equations to represent their individual interactions. 4. What effect would nitrate (NO2-), a common constituent of polluted water, have on DO results? Write a balanced equation for its interaction. 5. What is meant by seawater intrusion in drinking water supplies? How does this happen? What are some consequences of these phenomena?2. color of the flame produced when using in AAS in potassium determination a. orange b. none of the choices c.. yellow d. red e. purple 3. preferred additive for chloride determination .a. EDTA b. sodium heparin c. none of the choices d. sodium citrate c. potassium oxalate
- A student found that 0.076 g of PbF2 was dissolved in 220 . mL of saturated PbF2. What is the Ksp for the lead(II) fluoride? (Enter your answer as follows: 1.0e-2 for 0.010). Ksp =Question: The solution has a volume of 100 ml, and the adsorbent weights 150 mg. Find the Langmuir equation, R2, the slope, the intercept, qm, KL, and RL.Ksp of AgCl = 1.8 x 10^-10, how much volume of water would it take to dissolve 0.019g?