Select an EPA or other method based on electrochemistry and briefly describe the principle and target analytes of the method. What is the sensitivity of this method?
Q: A condensed structure corresponding to the IUPAC name 3-ethyl-3,4-dimethylnonane.
A: To draw the structure of 3-ethyl-3,4-dimethylnonane and 4-ethyl-2,2-dimethyloctane
Q: Draw the skeletal structure of the disulfide formed when the thiol shown is oxidized. SH
A: A skeletal structure in chemistry is a simplified representation of a molecule that conveys the…
Q: Consider an electron in the spin-state σ = 1/2 [α + B]. (a) Is σ an eigenfunction of $2? If yes,…
A: The objective of this question is to analyze spin states, operators, and expectation values by…
Q: Part 1 of 2 Name: Part 2 of 2 Name:
A: IUPAC nomenclature are the set of rules that are used or taken into consideration while naming any…
Q: Which molecular orbital (MO), from the diagrams shown below, best explains that electrons can move…
A: Ans (A) Bonding MO of diagram 1 Explanation:Ans (A) Bonding MO of diagram 1 If we just take the π…
Q: Correct each molecule in the drawing area below so that it has the condensed structure it would have…
A: Given that, the condensed structures are molecules are:
Q: Product light
A: The objective of this question is to predict the product of the reaction initiated or driven by…
Q: Draw a solubility curve for Substance X and answer the questions below using your graph. Make sure…
A: Solubility of a substance is the maximum amount of substance that can be dissolved in particular…
Q: Draw the skeletal ("line") structure of the smallest organic molecule that produces sodium hexanoate…
A:
Q: e w What is the product for the following alkylation? 1. NaOEt, EtOH, 25°C IV 2. Br oh
A:
Q: The major product formed in the following reaction is i. t-BuLi 1. ii. ICH₂CH₂CI 3. 4. Jaa
A: The objective of the question is to predict the product formed in the given reaction.The given…
Q: Payalben
A: To solve this problem, we'll use the ICE (Initial, Change, Equilibrium) table for the reaction: \[…
Q: Convert product C, shown below, into its Fischer projection. One of the carbon atoms has been marked…
A: Step 1:To convert the given product C into its Fischer projection, you need to visualize the…
Q: Richard and Jessica are lab partners. They pour 40.0 mL of a 0.200 M HC2H3O2 solution into a 250 mL…
A: At 0.00 mL NaOH added: pH = 2.72 At 20.00 mL NaOH added: pH = 4.97 At 36.00 mL NaOH added: pH =…
Q: 0.400 L of a 12.0 M stock solution of sulfuric acid is enough to prepare how manyliters of 0.800 M…
A: The objective of this question is to find out how many liters of 0.800 M solution can be prepared…
Q: 2+ 2+ For the electrochemical cell, Fe(s) | Fe(aq) || Cu(aq) | Cu (aq) | Pt(s), determine the…
A: Fe(s) + Cu²⁺(aq) → Fe²⁺(aq) + Cu(s) The standard electrode potentials (E°) at 25°C for the…
Q: Highlight the atoms or groups that are in hydrophobic portions of this molecule in blue, and the…
A: Answer:To highlight the hydrophilic/hydrophobic parts of the molecule in different colors we need…
Q: Determine the Ka for a weak acid by constructing an ICE table and using this information to…
A: HAH2O⇌H3O+A−Initial 0.1-00Change -0.003-+0.003+0.003Equilibrium…
Q: 3. Label the following pairs as A) distereoisomers, B) enantiomers, C) conformers, or D) the same.…
A: Since you are given more than 3 questions/subpart I will be solving first 3 subparts according to…
Q: Provide the major product for the following reaction? HO (1) NaOH (2) CH₂CH₂Br
A:
Q: Why is conductivity important when preparing SEM samples? Explain in detail.
A: Scanning electron microscope (SEM) is device that uses a focused beam of electrons to produce images…
Q: Draw the mechanism for
A: Organic reactions can be defined as the reactions in which organic reactants react with each other…
Q: None
A: Therefore, the correct statements for the given reaction at 298K are:ΔG° < 0n = 2 mol…
Q: Problem 4. Calculate the molar mass of water if it contains 50% heavy water (D₂O).
A: Water contains 50% of heavy water (D2O).We need to calculate the molar mass of water.
Q: Determine the Kb for cocaine (a base) by constructing an ICE table and using this information to…
A:
Q: Let's tie this together! Which correctly and completely describes the product of the following…
A: Given that, the reaction is:
Q: Identify the relationship between the following compounds. Et Et H3C OH ICH 3 HO Br Br O enantiomers…
A: Same molecule ( identical compound ) has same configuration and same connectivity of…
Q: The Michael reaction is a conjugate addition reaction between a stable nucleophilic enolate ion (the…
A: The objective of the question is to draw the structure of the product of the Michael reaction…
Q: H What is the product for this Claisen condensation? 2 CH A) B) 0 D) CH3 Ева NaOCH3 ? CH3OH Язаст…
A: Mechanism:
Q: The name below is incorrect. Draw the structure. Explain what is incorrect about the name and rename…
A: In organic chemistry, C plays a very important role. This is because the C-atom shows some unique…
Q: Calculate the amount of heat needed to melt 196. g of solid octane (C8H18) and bring it to a…
A: The heat of vaporization is the amount of energy required to convert a liquid substance into a gas…
Q: Among the five protons shown below select the most shielded (lowest chemical shift). Hint: take into…
A: 1H-NMR: The spectra are provided because of the magnetic field experienced by the protons present in…
Q: Which of the compounds is more soluble in an acidic solution than in pure water? BaSO3 SrS Ni(OH)2…
A: The objective of the question is to identify which among the given compounds is more soluble in an…
Q: A sample of carbon dioxide gas was collected at 20.0°C and 0.666 atm and occupied a volume of 15.0 L…
A: Initial temperature (T1) = 20.0C = 20.0 + 273 = 293 KInitial pressure (P1) = 0.666 atmInitial volume…
Q: Explain in detail and don't provide handwriting solution
A: Step 1: Hydration of alkeneWhen the alkene π bond attack at the acidic proton of hydronium ion then…
Q: Consider the following equilibrium: N2O4(g) 2NO2 (g) AG = 5.4 kJ Now suppose a reaction vessel is…
A: Answer:Here:
Q: A titration was done to determine the concentration of a sample of HCl. The volume of the acid…
A: The objective of the question is to write the balanced neutralization reaction equation for the…
Q: What would be the major product of the following reaction? i KMnO, OH heat 1. Br₂ P ii. H₂O ii H₁₂D…
A: The question is based on organic reactions.We need to identify the product and explain its…
Q: The following half reactions are used for a galvanic cell: Zn2+(aq)+2e-→Zn(s)E°=-0.76V…
A: Nerst Equation:Where,E is the cell potential under non-standard conditions.E∘ is the standard cell…
Q: Predict the main product(s).
A:
Q: Suppose you need to prepare a buffer with a pH of 5.00. Am 90S a. Which of the buffer systems in the…
A: We have to calculate the value of pKa to find the appropriate buffer systems. The appropriate buffer…
Q: eus to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C12H22 biological experiments. (aq),…
A: The objective of the question is to determine which type of glassware is to be used for the…
Q: Design a synthesis to make the compound below from two symmetric starting materials using Claisen…
A: The objective is to find two symmetric compounds that form the given compound using claisen…
Q: Draw the major product of this aminolysis reaction. Ignore inorganic byproducts. о excess NH(CH3)2…
A: The carbonyl carbon of the acidic anhydride acts as an electrophile and the amine acts as a…
Q: c) Draw Newman Projections and energy profile between dihedral angle and potential energy for butane…
A: Butane has four conformation isomers which are fully eclipsed, gauche, eclipsed, and anti butane…
Q: What is the solubility of La(IO3)3 in a solution that contains 0.200 M La3+ ions? (Ksp of La(IO3)3…
A:
Q: In the box on the right, draw the best resonance structure of the compound on the left. Draw…
A: Given,The molecule is:
Q: The three proton transfer steps result in the intermediate shown below. Draw the curved arrow…
A: Curved arrows are used to depict how electrons are moved between the reactants to form the product.…
Q: 15) Give the IUPAC name for each compound.
A: Organic compounds can be defined as compounds that contain carbon and hydrogen atoms. We have been…
Q: I know that this is an E2 reaction, but I am not sure why! Please label electrophile and nucleophile…
A:
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- In order to analyse mercury with AAS, which method will you prefer?The interaction between a basic analyte and the residual silanol groups of the stationary phase is minimized when the pH of the mobile phase used is equal to the pKa of silanol. True or False?State and explain the principle on which the fully automated analyser operates.
- What are the conditions for a successful gravimetric analysis. Define nucleation. What conditions are important for this stage.A 50.00mL sample with BaCl2 was diluted to 650 mL. Aliquots of 100.00 mL of this solution were analysed using Mohr and Volhard methods. The following data were obtained. Volhard method: Volume of AgNO3 = 100mL; Volume of KSCN = 18.25mL Mohr Method: volume of AgNO3: sample = 27.80mL (blank) = 0.30mLWhat is the %BaCl2 using Mohr and Volhard Method. Concentration of KSCN: 0.04000M Concentration of AgNO3: 0.03000MExplain the reactions involved in separation separation of benzoic acid from mixture contain 3 components 1.Benzoic acid (acidic nature pKa=4.17) 2.Naphthalene (neutral compound) 3.paraNitroaniline(basic compound pKa=12.99
- Discuss the advantages, disadvantages, and limitations of the technique of cyclic voltammetry in both qualitative and quantitative measurements.it has been noticed that adulteration of palm oil with carcinogenic dyes are on the rise. Use your knowledge in analytical processes to systematically outline a protocol you will follow to process adulterated palm oil to gain qualitative and quantitative information spectroscopically about any added toxic dye. Explain also the basis for your protocol of choice.How is using thiamine as a catalyst rather than cyanide an application of greenchemistry? PROCEDURETo a six inch test tube was added thiamine hydrochloride (0.65 g), followed by water (2mL). The mixture was gently shaken until homogeneous, and then ethanol (7.5 mL)was added. Finally, sodium hydroxide (10%, 1.5 mL) was added and the mixture wasgently stirred to ensure complete mixing.Benzaldehyde (3.8 mL) was then added at room temperature in one portion with gentlestirring. The pH of the resulting reaction mixture was determined and adjusted to >10by dropwise addition of 10% sodium hydroxide. The reaction mixture was then partiallysubmerged in a 65 °C water bath2 and the progress of the reaction was periodicallymonitored by TLC analysis.Once TLC analysis indicated that the reaction was complete, the reaction mixture wascooled to approximately room temperature, and then chilled in an ice-water bath. Theresulting precipitate was collected by vacuum filtration and air-dried. The…
- A liquid/liquid extraction is performed to separate the following drug from a urine sample: Ibuprofen. The drug has a pka of 4.43+0.03 and an n-octanol/water partition coefficient of 11.7 at pH 7.4. 1. Assume you have a 20nM concentration of the drug in urine. You perform a liquid/liquid extraction of 20mL of urine with 10 mL of octanol at pH 7.4. What is your percent recovery? 2. Would your recovery be higher or lower at pH 2.0? 3. Explain what steps you would use to extract the drug by solid phase extraction. 7:55 PM VEthylenediamine tetraacetate or EDTA is a very common reagent in Analytical Chemistry. As what wasmentioned in the module, EDTA titrations are the easiest and are still the most currently used quantitative methods to analyze substances including pharmaceuticals. With that being said, EDTA, as a reagent, has its medical applications. In not more than 5 sentences, what is the significance of EDTA to your profession as future Medical Technologists? Aside from EDTA, enumerate (5) important chelating agents in the field of Medical TechnologyExplain how it is that SPE cartridges & disks allow analysts to more efficiently pre- concentrate analytes from samples where they exist at low concentrations.
