Q: Question 2 1. Briefly explain how: a) rivers can be treated when acidic wastes enter them. b) bee…
A: When acidic waste enter rivers, it decreases the pH of water from its neutral pH levels. This is…
Q: Question 13 What is the molar solubility of plumbous fluoride? Ksp = 4.1 x 10-8 O 2.2 x 10-3 M O 2.0…
A:
Q: band gap on insulator i understand the band gap difference between conductor, insulator, and…
A: From the given data we are going to answer why there is a large energy gap in insulators.
Q: 10 mol % Pd(OAc)2 BUNCI, K₂CO DMF, 100 °C OMe Pd(OAc)2 PhyP (20%) BC Reaction 2 BnO₂C7 OBn MeOOC…
A:
Q: Translate the given theoretical conformer from the wedge-and-dash drawing into its Newman…
A: The given structure is staggered form because in wedge-dash structure three atoms on back carbon…
Q: Question 15 Which of the following techniques measures spectra following excitation with…
A: The given techniques are XRF,µXRF,µCT scans,CµXRF.
Q: но ногом 0 Н. ен Н. за у (osnx7) Н -он
A:
Q: Question 28 The decomposition of hydrogen peroxide, H₂O₂, has a rate constant, k = 3.66 x 10-3 s-1.…
A: This question is the related to the first order Kinetic so in this question given, initial…
Q: Given the reactions, X(s) + 1/2O₂(g) → XO(s) XCO3(s) what is AH for this reaction? X(s) + O₂(g) +…
A:
Q: Aniline, benzenamine, abbreviated C6H5NH2, is an important organic base used in the manufacture of…
A: Concentration of aniline = 0.10 M Kb of aniline = 4.3 x 10-10
Q: What is being described in the following items? - light that interacts with the solution ✓light not…
A: Absorbance is directly proportional to the concentration of the solution.
Q: Question 10 Which of the following NMR features provides the number of hydrogens? Number of signals…
A: 1H-NMR technique used to identification and characterization of organic compounds in which number of…
Q: Direction: Write the chemical structure of the peptide fragment formed by condensation reaction…
A: condensation reaction
Q: What is the pH of 1.5M NaOH?
A: Given, Molar concentration of NaOH = 1.5 M Calculate the pH of the solution = ?
Q: An atom has an electron configuration of 1s22s22p6. Which of the following are possible quantum…
A:
Q: Draw the form of the alkyne that will predominate at equilibrium. CH3CH₂CH₂C=CH+ NaHCO3—?+ Conjugate…
A:
Q: What does a catalyst do?
A:
Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O₂, a large amount of heat energy is…
A:
Q: Summarise the above potential data by means of a Latimer and Frost diag
A: Latimer diagram is the diagram of a reaction involving the electrode potential and oxidation number.…
Q: Answer 39. Round off each of the following numbers to the indicated number of significant digits and…
A:
Q: (1) Draw a Lewis structure and line angle formula for [CH₂(CNCH0₂CO2]-*
A: In Bond line structure we do not show carbon atoms and hydrogen directly attached to it.
Q: 16. Consider an aqueous solution of ammonium cyanide, NH4CN(aq). Identify the pH of the solution as…
A: Here we are required to predict the nature of aqueous solution of NH4CN
Q: 0 -0
A:
Q: Name 10 dissolved substances that negatively affect the environment
A: Dissolved salts may be present in high enough concentrations to be toxic. Eg: naturally occurring…
Q: Which of the following forms a molecular solid? O paladio (Pd) O C9H804 OC, grafito O CaCl2
A: There are various type of solid such as ionic solid, molecular solid and covalent solid. Ionic solid…
Q: alpha-Cadinol is a constituent of Chamaecyparis lawsonia. Using the structure and image below,…
A: From the given data we need to find the configuration for the indicated carbon center. And to check…
Q: arises (at least in part) from an equilibrium between dissolved carbon dioxide and hydrogen ions.…
A: According to the above given question the soda bottle should the following requirements- The bottle…
Q: Question 28 The decomposition of hydrogen peroxide, H₂02, has a rate constant, k = 3.66 x 10-³ s-1.…
A: We can determine the order of reaction by seeing the unit of rate constant.
Q: . Write the balanced equation of the reaction between chlorine dioxide and water.
A:
Q: 3. When aqueous sodium carbonate (Na₂CO3) is added to barium chloride (BaCl₂), barium carbonate…
A: Detail mathematical calculation is shown below
Q: Describe the amount of reagents and steps needed for the preparation of 100 mL 0.050 M and 0.0050 M…
A:
Q: Draw the fatty acid products of the saponification of the triacylglycerol (triglyceride) shown.
A:
Q: Caffeine eine benze, and aspartame content of mountain dew soda was determined using reverse phase…
A: Given: Concentration of standard Caffeine used = 0.70 mg/mL Concentration of standard Benzoate used…
Q: Determine the molar enthalpy of combustion of an unknown fuel if a 2.75 g sample increased the…
A: The molar enthalpy of combustion can be determined by the ratio between the heat gained or lost by…
Q: Suggest short, efficient reaction sequences suitable to produce the compound from the given starting…
A: In this question, we will synthesized the final product from the starting material which is alcohol…
Q: A metal weighing 45.6g loses 350.6J of heat when it’s temperature is lowered from 89.2oC to 64.2o…
A:
Q: 3. A formic acid buffer is prepared with 0.010 M each of formic acid (HCOOH) and sodium formate…
A:
Q: What is the Ksp of Cr(OH)3 if its solubility is 1.3 x 10-6 g/L? (MM = 103.0 g/mol) 9.6 x 10-31…
A: The mass of dissolved chromium(III) hydroxide is = 1.3 x 10-6 g The volume of the solution is = 1 L…
Q: Label a curve of potential energy vs. dihedral angle for the Newman conformations of…
A:
Q: 9.Use the following information to answer the next question. * Hydrogen iodide, HI(g) is a…
A: At equilibrium, reactants and products coexist in the reaction vessel.
Q: MA 58. How many moles of Fe₂O3 are produced if you begin with 5.6 moles of Fe? 9.Lem X 2 1 Zm 59. If…
A: 58) Given, 4 Fe + 3 O2 ➝ 2 Fe2O3 moles of Fe react = 5.6 moles moles of Fe2O3 produced = ?
Q: Which reaction order(s) will not require an initial concentration to solve its half-life? O zero O…
A: The half life of any reaction is the time required to consume the half of the reactant. For more…
Q: Consider this reaction: NH₂OH(aq) → NH3(aq) + H₂O (aq) At a certain temperature it obeys this rate…
A:
Q: What caused the difference in the distances of the markings between a deflated and an inflated…
A:
Q: Eye Hi... O C 11H H Answer Bank CH3
A:
Q: 1. Arrange the following in order of increasing pH of their corresponding solutions. a. CH3NH3Cl,…
A:
Q: Cu2+ + Fe Cu + Fe²+ The reaction is assumed to be that (Cu2+) =(Fe2+) =1.0M and T = 298 K. As the…
A:
Q: Consider the fatty acids: (a) Arachidic acid (C20H4002); molar mass = 312.5 g/mol) (b) Palmitoleic…
A: Ans.(i) Number of cycles of β-oxidation: (a) Arachidic acid (C20H40O2): Nine rounds of beta…
Q: Consider an electrochemical cell where the following reaction takes place: 2Au3+ (aq) + 3 Zn(s) →→→…
A:
Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an…
A: The rate constant depends on the temperature. with increase in temperature, the rate constant also…
A2
____ forms complex with EDTA
Step by step
Solved in 2 steps
- 0.9350g of an impure solid containing oxalic acid was dissolved and diluted to 100.00mL. From this bulksolution 8.00mL samples were titrated with 0.01267M KMnO4, resulting in an average titration volumeof 24.55mL. The molar mass of oxalic acid is 90.0349 g/mol. determine the mass %! Thank you!6.30 g sample containing tellerium is dissolved and 47 mL of 0.03 M K2Cr2O7 is added. After the reaction is complete, excess Cr2O72- is back-titrated with 11 mL of 0.105 M Fe2+. Find the percent by mass of TeO2 in the sample.How many mL of 0.1200 M KSCN will be needed in the back titration after addition of 30 mL 0.110 M AgNO3 solution to 0.3655g KI dissolved in 100 mL water? a. 1.1951 mL b. 5.1919 mL c. 9.1519 mL d. 1.5911 mL
- A 50.00 mL sample of hard water is titrated with 0.0102 M EDTA solution (volume of blank titration= 1.5 mL) and the volume of EDTA required is 22.44mL. What is the water hardness in ppm CaCO3?The end point of a titration was reached after 22.2 mL22.2 mL of 0.050 M0.050 M disodium EDTA titrant was dispensed into a solution containing the zinc ion. Calculate the moles of disodium EDTA used. moles of disodium EDTA: = molA 0.7980-g sample of chloride was titrated using the Fajans method and required 45.32 mL of 0.1046 M AgNO3. Calculate for % Cl (MM=35.45).
- A solid sample containing chloride and with a mass equal to 6.000 g was dissolved in water and transferred to a 100.0 ml flask. A 50.0 mL aliquot of this solution was diluted to 250.0 mL. In the titration of 20.0 mL of the diluted solution, 32.0 mL of 0.2000 mol L-1 AgNO3 standard solution were used. Calculate the % of impurities in the analyzed sample. Data: Cl = 35.45Thiourea, (NH2)2CS, forms highly insoluble compounds with mercury. Therefore, the amount of thiourea in a sample can be determined by titration with mercuric ion in a reaction that can be described by: 4(NH2)2CS(aq) + Hg2+(aq) → [(NH2)2CS]4Hg2+(s) A 0.951 2-g sample containing thiourea (FM 76.12) required 14.88 mL of 4.752 mM Hg2+ to reach the end point. Calculate the mass percent of thiourea in the sample.A. What is the characteristic color of ferric ions in solution? B. Why is the titration of the oxalate in the green salt with KMnO4 performed prior to carrying out the redox titration for iron content? (Why can’t you do them the other way – iron first then oxalate?) C. In a titration using 0.02000 M KMnO4 solution, the following data were obtained: Buret readings: FINAL = 15.31 mL INITIAL = 5.02 mL How many moles of KMnO4 were used?
- Determine the % w/w chloride in the sample. A 0.3285 g sample containing chloride and inert material is titrated with 0.1012 M AgNO3, requiring 34.99 mL to reach the Ag2CrO4 end point. Titration of a blank sample consumes 0.32 mL of the AgNO3 titrant.1. A copper(II) sulfate solution of unknown concentration is placed in a colorimeter and an absorbance reading of 0.46 is recorded. Using the same solution cell, a 0.055 Μ solution of copper(II) sulfate gives an absorbance reading of 0.34. What is the concentration of the first solution? Write only the value. 2. A given 5.0g impure sample of sodium carbonate was titrated via 0.1500N HCl. The sample utilized 31.55 ml of 0.1500N HCl. What is the percentage of sodium carbonate is in the sample?Calculate the volume of 0.0407 M EDTA needed to titrate the Ca in a 0.1622 g CaCO3 (MM = 100.0869 g/mol).
