What is the reference method for sodium and potassium determination

Q: AHjattice ΔΗ, II

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Q: What is AG° for the following reaction? 21 (aq) + Cl2(g) L(s) + 2C1¯(aq) -

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Q: CALCULATE THE Concentration iron(III) thiocyanate ion [FeSCN2+] (M )

A: Insufficient information but I know the all data so I tried to solve it. If you have different data…

Q: Referring to the posted calibration curve ... (Image attached) A 154 g sample of a ruthenium ore was…

A: The absorbance of solution is 0.840. The amount of ruthenium dissolved in 75.00 mL of solvent is 154…

Q: sodium hypochlorite (NaOCl) was dissolved in a solution buffered to pH = 6.20 . find the ratio…

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Q: How is lead ion separated and identified in group 1 cation analysis?

A: Qualitative analysis of Lead ion (Pb2+) ; In group I cation analysis, the presence of Pb2+ is…

Q: A cyanide solution with a volume of 12.02 mL12.02 mL was treated with 20.00 mL20.00 mL of Ni2+Ni2+…

A: Given: Volume of CN- solution = 12.02 mL = 0.01202 L                              (Since 1 L = 1000…

Q: What hazards are associated with this lab and what steps are taken to avoid them? Why does adding…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: 1. Color of spots: Cu Ni Fe ...... 2. Ion requiring no development is 3. Ammonia develops a color.…

A: 1) Color - Cu2+ -- clear light blue Fe3+ -- clear pale yellow Ni2+ -- clear green 2) Fe3+ 3) Blue 4)…

Q: Determine the unknown cation present in each test tube using the data tabulated below: Choices: A.…

A: We need to determine the cation present in each mentioned test tube, with respect to the tests given…

Q: A 0.4567 g sample of a ruthenium containing ore was dissolved in acid, treated appropriately to…

A: Given - Mass of ore = 0.4567 g Volume of solution = 50.00 ml Absorbance of solution = 0.600 To find…

Q: 10. After reading the introduction, what are the confirmatory test for the following, describe what…

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

Q: 4.75 Describe the basic steps involved in gravimetricanalysis. How does this procedure help us…

A: Gravimetric analysis: It is an analytical process for determining amount of substance through the…

Q: What are the formula, molar mass, and color of potassium permanganate and specify the source used?

A: A chemical formula is the representation of chemical compound showing chemical proportions of each…

Q: This problem requires values in your textbook's specific appendices, which you can access through…

A: Here we are required to find the standard cell potential of the given electrochemical reaction

Q: To determine the percent purity of a sample containing iron(II) ammonium sulfate; Suggest , 2…

A: The question is based on the concept of quantitative analysis. we have to quantitatively estimate…

Q: 14

A: The substances that react with acid and bases are called amphoteric substance. Here the zinc oxide…

Q: Permanganatometry is used to quantify: A) Iron (II) sulfate B) Zinc sulfate C) Silver nitrate D)…

A: Permanganatometry is an analytical technique to anylyze various species.  This is based on redox…

Q: AAS is the most widely used instrumentation for the analysis of metal and traces metal samples.…

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Q: A cyanide solution with a volume of 12.02 mL12.02 mL was treated with 20.00 mL20.00 mL of Ni2+Ni2+…

A: Reaction of Ni2+ with EDTA4-: Ni2+ + EDTA4- →[Ni-EDTA]2-

Q: A child comes to a see a doctor and the doctor diagnosis the patient with hyperacidity or gastritis.…

A: Ans:- a) Composition of acid in the stomach- Hydrochloric acid HCl Milk of magnesia - magnesium…

Q: 5. Complete the following reactions and write spectators for each if any. a) Iron(III) chloride (aq)…

A: Solving 5th question These reactions are double displacement reactions. In this type of reaction,…

Q: A 0. 6875 g rock sample containing an unknown amount of Ca was dissolved in HCl and diluted to…

A: According to Beer-Lamberts law, the absorbance of a solution is directly proportional to its…

Q: Gay-Lussac Liebig Mohr Volhard Fajan A. Eosin Y O O B. Ferric ammonium sulfate O O C. No indicator O…

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Q: 25.0 g of an impure sample containing cobalt was dissolved in acid and diluted to 1000.00 mL. 6.00…

A: The final 250.00 mL sample had absorbance equal to 0.410

Q: What other metals we can detect with Spectroscopic analysis?

A: Heavy metals ions like lead(Pb2+), cadmium(Cd2+), zinc(Zn2+), arsenic(As2+), mercury(Hg2+) etc. can…

Q: Briefly explain how AAS can quantify the amount of lead in sample solution?

A: Atomic Absorption Spectrometry (AAS) is a technique for measuring quantities of chemical elements…

Q: A vial of technetium eluate contains 40 mCi/ml. If 2 ml are withdrawn and added to a diphosphonate…

A: A vial of technetium eluate contains 40 mCi/ml 2 ml of it will contain =2 ml×40 mCi1 ml=80 mCi This…

Q: 1) Why it is important to oxidize any Fe" or Ni" in the unknown sample?

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

Q: Instead of using an electrode to collect ions, why electron multiplier is needed as the detector for…

A: Interpretation -  To tell about why electron multiplier is needed as the detector for MS instead of…

Q: A copper(II) sulfate solution of unknown concentration is placed in a colorimeter and an absorbance…

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

Q: Refering to the image attached (Winkler method), what is the function of sodium thiosulphate and why…

A: Wrinkler method is basically used to determine the amount of dissolved oxygen in water sample…

Q: Refer to the posted calibration curve ...  Note that this calibration curve can be read to the 4th…

A: The calibration curve given is, Given: Mass of sample used = 0.4567 g. Volume of sample = 50.00 mL…

Q: A 0.062 L of 0.072 N silver nitrate was used to titrate three samples of Na+ compound (MW 288.38)…

A: The percentage composition of NaCl in the given sample is always the same and never changes on…

Q: Why was hydrochloric acid added for the flame test of barium?

A: Flame test of barium with con HCl.

Q: What is the practical application of gravimetric method of analysis

A: Gravimetric analysis is the quantitative analysis of an analyte. The composition of the materials…

Q: A salt Z was dissolved in water and the solution gave a white precipitate with both NAOH(aq) and…

A: The question is based on the concept of qualitative analysis. by seeing the observations of the…

Q: 23 - Which of the given reactions does not occur? O a) Pt(k) + AGNO3(in water) → O B) K(k) + MgCI…

A: Given : Some reactions are given.  To find : Reaction that does not take place.  Solution :…

Q: roblem Set #9 (Ch 19) Adaptive Follow-Up ercise 19.121 Item 2 I Review I Constants I Periodic Table…

A: We will equal gm equivalent of both An and NO3-

Q: What would happen to the Fe2+ concentration if a reduced sample was exposed to lab air for too long

A: Fe2+ have a tendency to be oxidized to Fe3+

Q: Why is a mixed indicator used in nitrogen analysis?

A: A mixed indicator gives sharper end-point color changes.

Q: (223) 226 l227 Question 5/17 ميز هذا السؤال A 0.600 g sample containing arsenic (As) was converted…

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Q: 2+ 6. (a) List the formula for each observed Cu(EN),ion, its max and its color.

A: The coordination complexes can be defined as the complex compounds which have coordinate linkage…

Q: When the Nickel (II) ion reacts with ammonia, most students notice a colour change occurring. Can…

A: Reaction of nickel with ammonia Nickel(II)-ions are precipitated by ammonia as a green…

Q: Calculate the concentration of all species (including H3O* and OH') in a 0.500 M solution of H2SO3…

A: Polyprotic acid is the acid that consists of two or more acidic hydrogen atoms. Number of…

Q: If we added AgNO3 to a sample containing KI. The chemical change observed in the test is Select…

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Q: Write short notes on: a. Acid refractories b. Basic refractories c. Neutral refractories d. Fire…

A: since you have posted a question with multiple subparts, we are entitled to answer only first three…

Q: Solutions containing calcium produce a red-orange color in flame tests. When a flame test is done on…

A: Flame test is the analytical procedure to determine the presence of certain elements, primarily…

Q: A salt containing an "unknown" anion is analyzed using the three Classification tests. Use the data…

A: 1) we have to identify the anion by analysing TestA, Test B and Test C  Note: According to Q&A…