3.) A standard reference FeSCN2+ solution (0.020 M) has an absorbance 1.070. What is the concentration of an %D unkown FeSCN2+ solution that has an absorbance 0.387. unknown [FESCN²+]
Q: In practice the standard solutions are made by pipetting a known amount of a stock solution with a…
A: Given: Concentration of stock solution = 900 µM And the solution's data given is,
Q: If a solution has a 1max of 500 nm, what is the likely color of the solution? red orange blue green…
A: Solution: We know that color of any compound appearing is the complement color of which is absorbed.…
Q: Which column would you expect to fine ions with 2- charge? O a Column 5A in worksheet (or 15 on…
A:
Q: A 200.00 mL solution of 0.00105 M AB4 is added to a 270.00 mL solution of 0.00245 M CD5. What is…
A: Assuming the salts AB4 and CD5 are soluble in water completely as no information is given about…
Q: Titration of the I, produced from 0.1857 gm of primary – standard kIO3 required 61.905 ml of sodium…
A:
Q: A 1.9300 g impure sample of Fe(NH4)2(SO4)2 (FW = 392.14) was dissolved in 75 mL 0.75 M H2SO4 and was…
A:
Q: Pt (II) and TI (III) are two metals that can be determined by UV spectrophotometry with…
A: Given: The molar absorptivity coefficient for Tl (III) at a max of 621 nm is 5.64×104 M-1 cm-1. The…
Q: CQueation 2 Complex (Cu(NH,"abscr bs hght with a waelength of 342 nm.What is the value of A in KJ…
A: Solution -
Q: How does the Ksp value for KHTar in the 0.10 M KC1 solution compare to that in 0.10 MNaCl? Explain.
A: The Ksp value depends only on temperature. If the temperature is constant, the Ksp value remains…
Q: 0.1500 g of an unknown sample was passed through a column of Amberlite IR-120(+) resin and titrated…
A:
Q: 0.257600 grams was dissolved in acid and was diIuted to 250mL. From the sample, 100mL aliquot was…
A: The question is based on the concept of quantitative estimation . we have to calculate percentage…
Q: 0.2 g of carbonate sample dissolved in 40ml of 0.IM HCI. Back titrated required 20 ml of 0.1 M NaOH,…
A:
Q: A limestone sample weighing 400 mg was dissolved in acid treated with excess sodium oxalate. The…
A:
Q: 2. Chloride in a brine solution NaCI (FM: 58.44) could be determined by the Volhard method. A…
A: The concentration of brine solution is determined as follows. NaCl=MAgNO3×VAgNO3-MKSCN×VKSCNVNaCl…
Q: 0,0585g Na2C204 10 ml 'to adjust KMN04 solution prepared as 0,1M distilled water, 2 M H2SO4 was…
A: Solution- A titration is a technique that uses a known concentration of a solution to calculate the…
Q: A 5.00 gram sample containing NaCl was treated with 50 mL of 0.1995N AgNO3 and required 10.45 mL of…
A: Here we are required to find percentage purity of NaCl.
Q: 1. Outline methods for analysing [Co(NH:)»CIJCI; for the ionic chloride and for the total chloride…
A: Introduction: Ionic chloride reacts with AgNO3 and gives a white precipitate of AgCl. For example,…
Q: A phenol standard with a concentration of 4.00 ppm has an absorbance of 0.424 at a wavelength of 460…
A: PhOH std 4 ppm PhOH samp 0.269036 ppmA 0.424 aliquot 50 mLw 460 nm dilution 100 mLb 1 cm A 0.394c…
Q: a 10 ml sample containing Ni was back titarted againat 0.0575 M EDTA. 10 ml concentrated amonia was…
A: The mass of Ni2+ present in the sample is 4.983559 g/L.
Q: An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard…
A: Given: Abs = 3.350x + 0.08 ……(1) The absorbance of diluted dye solution is…
Q: 1. What is the Qsp when 32.0 mL of 6.50 ✕ 10-7 M Na3PO4 are mixed with 41.4 mL of 5.50 ✕ 10-5 M…
A:
Q: How many molar of hydrogen ion are there in 0.1 M solution of nitric acid at 25°C ka for nktric…
A:
Q: 4. The molar absorptivities of the indicator weak acid HIn (K₁ = 1.42 x 105) and its conjugate base…
A:
Q: How many milliliters of 0.0300 M EDTA are required to react with 50.0 mL of 0.0120 M Cu2+? volume:…
A: The solution is given below -
Q: FeCl3 and MgCl2 solution was prepared by dissolving FeCl3 (AR) and MgCl2 (AR) in distilled water.…
A: Hydrolysis is the process in which water reacts with a compound. The required compounds in this…
Q: A 270.00 mL solution of 0.00150 M AB4 is added to a 380.00 mL solution of 0.00250 M C3D4. What is…
A: Molarity = No of moles/Volume Total volume of the solution = 270.00 mL + 380.00 mL = 650.00 mL
Q: 2. You are measuring the Fe(lI) content of a sample of FeCl2.4H20. You weighed out 1.20g FeCl2.4H20…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Each solution began with a different [Ag+]0. Should the Ksp value be the same for each solution?…
A: We have a sparingly soluble salt which is AgC2H3O2 and it is partially dissociated in the solution…
Q: Determine the concentration of [Fe(SCN)2+_std] if the standard solution was made using 18 mL of 0.2M…
A: The solution is given below -
Q: A 50.0 mL aliquot of solution contairing 0.450 g of MgSO4 (FM 120.37) in 0.500L required 37.6 mL of…
A: EDTA titration :- It is a complexometric titrations . EDTA is short form of…
Q: 2. Chloride in a brine solution NaCI (FM: 58.44) could be determined by the Volhard method. A…
A:
Q: First one is my data and second is what i need help with, please include calculations. a. name of…
A: Given, Concentration of stock solution ,M1=200×10-6M
Q: . NaI + Cl H2O + n hexane ------- _____________ bownish solution with dark violet layer on top…
A: It is a single displacement reaction. When NaI reacts with Chlorine, chlorine displaces iodine and…
Q: 2. Chloride in a brine solution NaCI (FM: 58.44) could be determined by the Volhard method. A…
A: Answer : Option a. 2.877 g/L Given : Molarity of AgNO3 = 0.1182 M Volume of…
Q: (a) Standard Ag1 solution was prepared by dissolving 1.224 3 g of dry AgNO3 (FM 169.87) in water in…
A: Given data,Mass of AgNO3=1.2243gMolecular weight of AgNO3=169.87g/molVolume=500mL=0.5LVolume of Cl2…
Q: A 0.2386-g sample contained only NaCI and KBr. It was dissolved in water and required 48.40 mL of…
A: Given data, Mass = 0.2386 g 48.40 mL of 0.04837M AgNO3 for complete titration Calculating the weight…
Q: What is the component concentration ratio, [Pr⁻]/[HPr], of abuffer that has a pH of 5.44 (Kₐ of HPr…
A: The Henderson Hasselbalch equation is given by, pH =pKa + log[A-][HA] where pKa is the negative…
Q: Show that the equivalence point N1V1=N2V2 where V1mL of analyte of strength N1 reacts with V2L of o…
A: At the equivalence point, equivalent quantities of titrant and analyte have chemically reacted with…
Q: Q3/ A) 0.63 g of a sample containing Na CO,, NaHCO, and inert impurities is titrated with 0.2M HCI,…
A: The first end point is due to: H++CO32-→HCO3- Calculation of no. of mol of CO32-:…
Q: A 282.0 mg sample of butter was warmed and shaken vigorously with water. The undissolved material…
A:
Q: Answer the following and show your complete solutions please. 1. Describe the preparation of the…
A:
Q: As a chemist, you know that when analyzing a 50-ml sample for total hardness, every milliliter (1.00…
A:
Q: A 370.00 mL solution of 0.00190 M AB5 is added to a 200.00 mL solution of 0.00165 M CD2. What is…
A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…
Q: Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. CuSO4 From the stock solution…
A: The amount of a substance that is present in a given volume of the solvent produces a solution. When…
Q: From the stock solution (0.040 M), pipet 0.00, 2.00, 5.00, 10.00, 15.00 and 20.00 aliquots into 100…
A:
Q: 3. In a preliminary experiment, a solution containing 0.083M X and 0.0666M S gave peak areas of A, =…
A: Given data: For solution: Ax = 423 As = 347 For the mixture: Ax = 553 As = 582
Q: Titration of Ca2+ and Mg2+ in a 50.00 mL sample of hard water required 23.65 mL of 0.01205 M EDTA. A…
A:
Q: Formula: ml base x N x meq. wt. x 100 %w/w = Sample weight A 4.59 ml sample of HCI, specific gravity…
A: 50.5ml of 0.9544N NaOH is required. HCl and NaOH reacts in 1:1 ratio. 4.59ml of sample was used…
Q: Q4. A 5.00 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by…
A: From the balanced redox reaction in the acidic medium, concentration of hydrogen peroxide in the…
![3.) A standard reference FeSCN2+ solution (0.020 M) has an absorbance
1.070. What is the concentration of an
%D
unkown FeSCN2+ solution that has an absorbance
0.387.
unknown [FESCN²+]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff55f97a6-864f-48ae-852f-251f4763f5b6%2F8d4e8d12-afb3-4171-bc0a-5f14e58e7769%2F66txwin.png&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A 370.00 mL solution of 0.00185 M A3B4 is added to a 390.00 mL solution of 0.00100 M C3D4. What is pQsp for A3D4?K2SO4 in order to prepare a 1 N of the solution. • What are the specifications of primary standard solution?a) What mass of Fe(NH4)2(SO4)2•2H2O(s) is required to prepare a 500 mL solution containing 100 ppm (m:v) in Fe? b) Using this stock solution, what aliquot must be used to prepare calibration solutions, 100 mL volume, of the following concentrations: 0.100 ppm, 0.500 ppm, 2.00 ppm, 4.00 ppm, and 7.00 ppm.
- What is the component concentration ratio, [Pr⁻]/[HPr], of abuffer that has a pH of 5.44 (Kₐ of HPr =1.3X10⁻⁵)?If a student used the molar mass of magnesium to calculate the concentration in parts per million (ppm) of a manganese stock standard solution, would the reported weight percent of manganese in a subsequent unknown, that was compared colorimetrically, be higher, lower, or not change?In how much volume of diluted sulfuric acid should you dissolve a multivitamin tablet of approximately 1700 mg of Vitamin C to back analyze 10.00 mL of that solution, with 25.00 mL of 0.01 M KIO3 and 0.04 M thiosulfate to use approximately 8-10 mL of titrant ? You have 25, 50, 150, 250 and 500 mL flasks.
- A titrant solution of KMnO was standardized with 0.2000 grams of Na2C2O4 and consumed 27.75 mL to reach end point. Calculate the standardized NORMAL concentration of the titrant.What is the cobalt(II) ion concentration in a solution prepared by mixing 357 mL357 mL of 0.396 M0.396 M cobalt(II) nitrate with 475 mL475 mL of 0.399 M0.399 M sodium hydroxide? The ?spKsp of cobalt(II) hydroxide is 5.92×10−155.92×10−15 .A titrant solution of KMNO4 was standardized with 0.2g of Na2C2O4 amd consumed 27.75 mL to reach endpoint. What is the standardized normal concentration of the titrant?
- As solution was prepared by dissolving 5.76g of KCl.MgCl2.6H2O (277.85g/mol) in sufficient water to give 2.000L. calculate a. pMg for the solution b. pCl for the solution2.) A 0.2185g sample of NaCl was assayed using Volhard Method with 50mL 0f 0.0998N AgNO3 and 11.9mL of 0.1350N NH4SCN. Calculate the % NaCl in the sample.Compute for the needed values for slution preparation: 1. Prepare the following solution quantitatively using boiled distilled water per group:250.0 mL 0.0500 M standard HCl solution from 1.0 M HCl 2. a. 500.0 mL 0.1000 M stock EDTA solutionb. 100.0 mL 0.0500 M stock Ca2+ solution