20- Brown rinc In a salt Experim (a) Nitrates are (b) Fe2* acts as (C) Brown ring (d) NO gas forn a

Q: What is the concentration in w/v% for 7.50 g Na2SO4 (s) dissolved in 285 mL of solution. (2 SF) Hint…

A:

Q: Determine the molar concentration of an EDTA solution of which 26.44mL, were required to titrate a…

A: In the estimation of calcium ions by EDTA , Ca2+ ion solution is pepared by dissolving CaCO3 in HCl.…

Q: A student withdraws 3.00Ml of supernate from a saturated solution of KHC8H4O4 at room temp (22C).…

A: Volume of supernatant withdrawn from  a saturated solution of KHC8H4O4 = 3.0 mL Volume of NaOH used…

Q: The titration of 0.5001 g of KHP with a purity of 98.5% (204.223 g/mol) required 25.10 mL of NaOH.…

A: Given is the titration between NaOH and KHP,  KHP reacts with NaOH in a 1:1 ratio. To find the…

Q: 1) A soda- Lime Sample is g0% NaoH and 10% CaO · If 3gm is dissolved in 250 ml, what is the tutal…

A: Given: mass of mixture = 3 gram  Volume of solution = 250 ml To find : Normality of solution and…

Q: 25) If the concentration of Pb²+ is found to be 1.3 · 10-9 mol/L In a saturated solution of…

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Q: If 28.70 mL of  0.0200 M KMnO4 is required to titreate a 0.250 g sample of K3[Fe(C2O4)3]x3H20, what…

A: The given data contains, Volume of KMnO4 = 28.70 ml. Molarity of KMnO4=0.0200 M.

Q: The cet potontal was 0817 V at 25°C and a Cu'(a) concentration of 0 117 M. What was the hydronium…

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Q: Jse the systematic treatment to get the concentrations of all the species in a solution of: a.) 0.35…

A: Mol. Mass of CaF2 = 78g/mol Mol. Mass of PbSO4 = 303g/mol Mol. Mass of K2C2O4 = 166g/mol 1M of a…

Q: 19. For each of the following, explain how you would prepare 1.0 L of a solution that is 0.10 M in…

A: As there are multiple questions with multiple subparts,  so as per our guidelines I will answer only…

Q: 4/A of ammo- is to receive 36 person nium chloride per kilogram of body weight. If the person weighs…

A:

Q: The pH of a water sample is found to be 6.3. It is titrated with 4.5mL of 0.02 N NaOH to a pH of…

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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: calculate the molar concentration of "copper (II) sulfate" of it has a measured absorbance of 2.17.…

A: Given: A1 = 2.17 A2 = 0.96 c2 = 0.10 M

Q: Which of the following is not true about Fehling's Solution B? 1. It is an acidic solution II. It is…

A: Fehling's solution B is aqueous solution of potassium sodium tartrate in aqueous NaOH solution. The…

Q: Cerium. 2. Why is it not advisable to dissolve KMnO4 in conc. H₂SO4?

A:

Q: A 0.527g sample of mixture containing Na2CO3 and NaHCO3 andinert impurities is titrated with O.109M…

A: In the given question we have to calculate the percentage of Na2CO3 in the mixture.

Q: The sulfur from 4.00g steel is evolved as dihydrogen sulfide gas and titrated with 1.60 mL of…

A:

Q: Lead chiode PC occun naturoly as mineral cofunnite. Given thot Kvalue of PoC1210t whota the solubty…

A: Reaction :                 PbCl2  ⇔Pb2+ + 2Cl- Where Given Ksp = 1.2 X 10-5  Now here,…

Q: A 0.2431 g sample of CaCO3 is dissolved in 6 M HCl and the resulting solution is diluted to 250.0…

A: Mass of sample=0.2431 g Molar mass of CaCO3= 100.08 g /mol Titrated volume = 25 mL Total volume =…

Q: L. How many moles of FelOH): [K,-L8 x 10" will dissolve in 1.0 liter of water buffered at pi =…

A: As per bartleyby guidelines i answered only first question so please don't mind and post other…

Q: Q\ IE the meduim of the Plasmais Potassium Withanioni Zation Potentialof 4.3.then ithedegree…

A: Given  Ionization potential is= 4.3 Temperature = 7500k  (A) 0.9 (B) 0.3 (C)0.8

Q: The phosphate in a 3.000 g sample of industrial detergent was precipitated by the addition of 1.000…

A: Mass of phosphate sample = 3.0 gram Mass of AgNO3 added = 1.0 gram Required volume of Filterate =…

Q: A 50.00 ml of a sample of river water was titrated with 0.0015M of sodium dichromate and required…

A: Chemical oxygen demand COD)- Amount of oxygen that can be consumed by chemical reaction in a…

Q: D) A sada- Lime Sample is g0% NaoH and 10%% CaO · 1f 3 gm is dissolved in 250 ml, what is the tutal…

A: Solution Given :mass of sample = 3 gram  Normality of solution = 0.51 N Volume of solution =  250 ml…

Q: The Zn in a 0.6803-g sample of foot powder was titrated with 27.3 mL of 0.04246 M EDTA. Calculate…

A: To calculate the percentage of zinc in the foot powder sample, use the EDTA titration. First…

Q: 4.912-g sample of a petroleum product was burnedin a tube furnace, and the SO2produced was…

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Q: A student weighs 0.3745 g of unknown and dissolves it in 50 mL of deionized water. A 0.1125 M…

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Q: 1. How many ml of 0.30M solution of H2SO4 will react with 20ml of a 0.30M solution of NaOH?…

A: Given values: n1 = 2           M1= 0.30M V1 = ? n2= 1 V2= 20ml M2= 0.30M n1, M1 and V1 are the…

Q: Ble Blue cooY 2. How does abserbance vary with Concentration ef the Copper (IT) Solution? 3. Hou do…

A: Given information Concentration of  Solution Absorbance 0.1 M 0.31 0.2 M 0.61 0.4M…

Q: Calculate the concentration of Ca++, Cl in mM/L and meq/L; and hardness in mg/L as CACO3 produced by…

A: Dear student, calcium chloride is highly soluble in water. Concentration of calcium chloride in its…

Q: The phosphate in a 3.000 g sample of industrial detergent was precipitated by the addition of 1.000…

A: Solution                               Given that Phosphate = 3.000g AgNO3 = 1.000g KSCN = 0.1377M…

Q: A 0.1017 g sample of KBRO, (MM=166.1) was dissolved in dilute HCl and treated with an unmeasured…

A: Given: Mass of KBrO3 = 0.1017 g. And volume of Na2S2O3 (or S2O32-) required = 39.75 = 0.03975 L…

Q: 5. The equilibrium constant, K¸, for the reaction below is 6.0 x 10 ³. Fe(H,0),*(aq) +…

A: The concentration of the hydrogen ions released is equal to (KaC)1/2 where Ka is the dissociation…

Q: 27. Which of the following sal ts would not be expected to be more soluble in acidic solution than…

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Q: 1. A silver nitrate solution contains 14.77 g of primary standard AgNO3 in 1.00 L. What volume of…

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Q: The oquilibrium constant for the chemical oquation N,+3H, 2 NH, is K,-019 237 C Calculate the valae…

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Q: A 4.59 TITRATEĎ SAMPLE with 10.5ML OF BLOOD 42) of 0.04 M K2CK207 TO THE DETERMINE AL COHOL…

A: The balanced titration reaction taking place is given as, => 16 H+ + 2 Cr2O72- + C2H5OH…

Q: electrolyte, ölytewhenitis dissolved in water? What species are present inC12H22O11(ag)?

A: The question is based on the concept of solutions. We have to identify nature of sucrose as an…

Q: These are six test tubes containing 0.1 M aqueous solutions of (in no particular order)  (view…

A: Six test tubes containing 0.1 M aqueous solution with no particular order are given NaOH Ca(NO3)2…

Q: ng agent is used in - argentometric titration . complexometry of a metal in a solution containing…

A: Masking agent is the agent that used in the chemical process to inhibit the presence of chemicals…

Q: A 0.2420 g sample cntg. Calcium is dissolved and the metal precipitated as CaC,O4 The ppt. is…

A: Solution -

Q: 2.) Phosphorus in urine can be determined by treating with molybdenum(VI) and then reducing the…

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

Q: The excess K2Cr207 was back-titrated with 8.53 ml of 0.00949 M Fe2* şolution. Calculate the molar…

A: Answer is 1.12×10-²M

Q: Calculate the percentage of nickel, chromium and iron in the alloy.

A: We are provided with: Weight of the sample containing  Volume of the  Concentration of  A back…

Q: The volume of 0.0125 mol/L sodium thiosulfate used for titration is 98.7 ml. What is the amount of…

A: Interpretation- To determine the amount of dissolved O2  in mg/L when the the volume of 0.0125mol/L…

Q: A volumetric iron analysis on trip pelieved to be suffering from anaem 3.15, 3.25, 3.26 mmol Fe/L.…

A: Solution - According to the question - Given -

Q: Q1/ A buffer solution having pH of 4.7 at 25 °C, Calculate the molar solubility of Al(OH)3 in this…

A: Given: pH of buffer solution = 4.7  And Ksp of Al(OH)3 = 1.9 X 10-38

Q: 6.30 g sample containing tellerium is dissolved and 47 mL of 0.03 M K2Cr2O7 is added. After the…

A: The balanced equations are     3 TeO2 + Cr2O72–   + 8 H+ → 3 H2TeO4 + 2 Cr3+ + H2O   Cr2O72– + 6…