What is Lucas reagent?        2,4-Dinitrophenyl hydrazine       ZnCl₂ in Conc. HCl       Ammonical AgNO₃       A solution of sodium carbonate, sodium citrate and copper(II) sulphate

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: Approximately 6 mL of concentrated perchloric acid (72%) was transferred to a bottle and diluted…

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Q: Bromothymol blue (MWt 624 g/mole, weak acid, pka 7.1) diluted solution is prepared by diluting 2.5…

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

Q: A solution may contain, chloride, carbonate, phosphate, and or sulfate ions. No effect is observed…

A: 1) As no impact is seen upon the expansion of 6M HNO3, it affirms that CO32-is missing. In the event…

Q: An unknown sample containing mixed alkali (NAOH, NaHCO3, or NazCO3) was analyzed using the double…

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Q: A, B, C + NH, 1. +ΗΝΟ,, 2. toluene white precipitate white precipitate yellow toluene layer,…

A: Given scheme is:

Q: What is the Eocell for this reaction? Cr(NO3)2    +   AgNO3  →   Cr(NO3)3   +   Ag     0.30 V…

A: To determine E°cell for any reaction, first of all the reaction taking place at anode and cathode is…

Q: JL alt ctrl ins del NAME SECTION DATE POSTLABORATORY ASSIGNMENT "barium/calcium/magnesium" unknown…

A: Since you have posted multiple questions and have not mentioned which question you want us to solve,…

Q: Sodium nitrite with antipyrine solution and hydrochloric acid forms? A) Emerald green coloration…

A: Reaction of sodium nitrite with antipyrine solution in presence of hydrochloric acid forms the…

Q: Since EDTA titration must be done at pH 10, which procedure will help in removing the HCl in the…

A: Answer - EDTA - Ethylenediaminetetraacetic acid (EDTA) is an aminopolycarboxylic acid with the…

Q: Why is it necessary to use a buret for measuring standard AgNO3 solution in volhard method? 2. What…

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

Q: What volumes of 0.100 M acetic acid and 0.100 M sodium acetate would be required to produce 1.00 L…

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Q: Importance or use of hexaamminecobalt(III) chloride.

A: Hexaamminecobalt(III) chloride has the formula [Co(NH3)6]Cl3 It is prepared by recrystallization…

Q: Why is [Fe(OH2))6]%+ prepared in an acidic solution? 13+ A. It is a Bronsted acid in aqueous…

A: We have to explain that why Fe3+(aq) solution is prepared  in acidic  medium and we have to select…

Q: Why Tetrafluoroboric acid diethyl ether complex (HBF4.Et2O) would be used over HCl for protonation…

A: Tetrafluoroboric acid is a superacid. It comprises of two parts:  1. H+ 2. BF4-

Q: After dissolving a brown residue in 6M HCl, followed by addition of 0.1M KSCN. A solution with deep…

A: Salt analysis refers to spotting of ions (cation and anion) in any given salt. This procedure is…

Q: Sodium lauryl sulfate has the same use in embalming fluids as  1-sodium phosphate 2-citrates…

A: Sulfonates

Q: mass of NaCH3COO must be dissolved in 400 mL of 0.46 M CH3COOH in order to prepare a solution with…

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Q: Which of the following is INCORRECTLY matched? Select one: a. Br with acidified Fe(NO3)3 and…

A: To identify the incorrectly matched statement.

Q: a) In which of the below reactions is metal sulfide dissolution more energetically favorable? MnS +…

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

Q: The organic compound 18-crown-6 (see preceding prob- lem) also binds strongly with the alkali metal…

A: reaction is said to be in equilibrium if the rate at which the forward reaction takes place becomes…

Q: A solution of sodium nitrate (NaNO3) at 60oC contains 120 grams. Question 6 options:   saturated…

A: In the solubility graph, the curve shows number of grams of a substance in a saturated solution…

Q: Reagent that prevents precipitation of Ag as carbonates, phosphates: -Nitrobenzene -HNO3 -H2SO4…

A: Precipitation is the chemical phenomenon to turn an ion into an insoluble solid substance with the…

Q: (b) AgNO3 test : Red precipitate formed , which dissolved in dilute HNO3 BaCl2 test : Yellow…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: An unknown sample containing mixed alkali (NaOH, NaHCO3, or Na2CO3) was analyzed using t double…

A: Answer - The correct option - is NaHCO3 and Na2CO3 Explanation - pH -  pH, historically denoting…

Q: If 5 mL of 20% w/v aqueous solution of furosemide is diluted to 10mL, what will be its final…

A: Given that: Volume of solution = 5 mL Strength of solution = 20% w/v Volume added = 10 mL Final…

Q: Which of the following reacts with HCl to form a white precipitate?     Ag+     Pb2+     Hg22+…

A: Given, Ag+    Pb2+    Hg22+    all of the above

Q: VERSION) IDENTIFYING UNKNOWN COMPOUNDS USING REACTIONS your observations Record Reagent NAOH…

A: Yes all Reactions are correct  No of atoms and charge should be balance in both side  And charge…

Q: Write T on the blank provided if the statement is correct

A: Statement 2 and 3 is correct only one is incorrect.

Q: a) Consider the following reaction: [M(H₂O)]³+ + 2 en → [M(en):]++ 6H₂O (M-a metal ion; en =…

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Q: What is formed in the precipitation test for sodium ion? A. potassium-sodium cobaltinitrate B.…

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Q: Complete the table. Reagent Function of reagent Color of acid fast cell 1. carbolfuchsin…

A: given data - 1.carbolfuchsin     2. acid alcohol     3. methylene blue solution…

Q: What is the Ph of the buffer solution that contains 1.00 M HC2H302 (acid) and 0.800 M KC2H302 with…

A: Whenever the acid concentration as well as its conjugate base, or the base and its conjugate acid,…

Q: How many moles of Fe(OH)2 (Ksp = 1.82 x 10-15) will dissolve in 1.5 liter of water buffered at pH =…

A: Given that : Ksp for Fe(OH)2 = 1.82×10-15 We have to determine how many moles of this Fe(OH)2 will…

Q: 8. Determination of the stability% of certain API in its finished product using spectrophotometric…

A: a) A Gravimetric analysis process is the to determine the quantity of analyte base on the mass of…

Q: Which of the following compounds will give a silver mirror when warmed with ammoniacal silver…

A: Tollen test is also called silver mirror test and ammonical silver nitrate is used. Tollen reagent…

Q: A red aqueous solution of Fe(SCN)- means the soluti a. absorbs red light b. absorbs the…

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Q: What is the primary use of standard K2Cr2O7 solutions?

A: Potassium dichromate (K2Cr2O7) is primarily used for volumetric analysis to determine the weight of…

Q: Alkaline I2 in K2Cr,0, H,SO4 Compound Tollen's Test NaHCO3 Mg ribbon KI Silver mirror Green solution…

A: Applying tests to distinguishing alcohol aldehyde ketone carboxylic acid and esters.

Q: B. Solid AgCl (Ksp = 1.8×10-10 ) is dissolved in 1 Liter of water , then 0.585 gm of sodium chloride…

A: AgCl will dissociate into ions according to the equation: AgCl (s) ⇌ Ag+(aq) + Cl-(aq) If M is the…

Q: What is the Eocell for this reaction? Cr(NO3)2    +   AgNO3  →   Cr(NO3)3   +   Ag     0.30 V…

A: No option is correct.  Given electrochemical reaction; Cr(NO3)2    +   AgNO3  →   Cr(NO3)3   +   Ag…

Q: 9. The titrant in the complexometric method is: A) Nitrilotriacetic acid B) Ethylenediamine…

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Q: Explain why bisulfite ion is atmopheric.

A: The ion given is bisulfite ion i.e. HSO3-.

Q: f 1 mole of the salt was placed in 1 liter of water? Which salt would produce the highest…

A: Here all given sparingly soluble salts are broken in water as follows, AB s  ⇌A2+ aq  + B2- aq

Q: An unknown sample containing mixed alkali (naoh, nahco3, or na2co3) was analyzed using the double…

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Q: A mixture of Al3+ and Mg2+ in a sample of water. Explain a procedure to analyse this mixture using…

A: Aluminium ion, Al3+, form stable complex with EDTA than Mg2+does.

Q: Calculate the saturation indices of the solutions described below and classify each as…

A: We need to investigate the ion activation product for each species mentioned.

Q: A basic drying agent should not be used to dry an acidic Which of the following is a basic drying…

A: Given statement is :  A basic drying agent should not be used to dry an acidic. Which of the…

Q: 1) KMNO4, NaOH, H2O 10. heat (excess) 2) H20, H3O* (excess) 11. 1) Zn(Hg), HCI Ph 2) NBS, UV light…

A: