Q: name the following structures
A: Given,
Q: OH
A: Condition for aromaticity 1. Molecule should be cyclic 2. Planar 3. Complete delocalization of…
Q: - are aromatic?
A:
Q: The IUAPC name of this compound is?
A: The first step in assigning the IUPAC name to an organic compound is to select the longest…
Q: Which of the following are aromatic?
A:
Q: Question 5 Which onels) of these is/are aromatic? D OC OB O none of them O Band D O Aand C O A, B,…
A: Those compounds which have Following properties are Present, are called aromatic compounds - (1)…
Q: Which structure is aromatic and has six electrans in the conjugaled
A: Answer:
Q: Which of the following compounds contain an aromatic ring?
A: The aromaticity of the ring compounds is determined using the Huckel rule. A ring containing a…
Q: classify if it’s aromatic or not aromatic
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: Classify the following compound aromatic, antiaromatic, or nonaromatic. as
A:
Q: IUPAC names o
A: IUPAC nomenclature is based on naming a molecule by the longest carbon chain which is connected by…
Q: Which one of these molecules are aromatic?
A: Aromatic compounds are those compounds that contain conjugated planar system with delocalization of…
Q: Draw the structure of the following compounds which include aromatic compounds and the basis for…
A: We have to draw the structure of the following compounds which include aromatic compounds and the…
Q: Which of the following compounds would be classified as aromatic?
A: Since we know that for a compound to be considered aromatic, it must follow the given conditions (i)…
Q: Which of these is aromatic
A:
Q: Which ones are aromatic compounds? Why?
A: Aromatic compound is that consist of a planar ring with conjugation of pi electrons. Aromaticity of…
Q: Provide an unambiguous name for the following compound.
A: The given structure is; The structural formula of the above structure is C11H17N.
Q: The criteria for aromaticity now includes the which is generated by the circulating pi electrons of…
A: Ring planar
Q: following compour aromatic or non ar
A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atoms in a…
Q: How is this aromatic
A: Generally aromaticity of molecule is predicted by Huckel's rule.
Q: The name of the following structure is
A:
Q: Which one is an aromatic compound?
A:
Q: What is its molecular formula?
A:
Q: Define the σ and π bonds in acetylene ?
A: sigma and pi bonds are a class of covalent bonds which are differ in the overlapping of atomic…
Q: Which one of the following compounds is NOT an aromatic molecule? + A + + +
A:
Q: Name the following organic chemistry structure and show the way
A: In this question, we have to name the given organic compound.
Q: Provide the systematic and common names for the following compounds
A: IUPAC nomenclature is used for naming organic compounds. Full form of IUPAC is international union…
Q: is least basic?
A:
Q: Name the following structures
A: In the given question, the names of the given compounds have to be determined. A. IUPAC name:…
Q: Which one of the following compounds is aromatic?
A: A compound is said to be aromatic if it follows the following conditions : 1) Cyclic 2) Planar 3)…
Q: is this Compound Aromatic
A: * The molecule in which contains 4n+2 pi electron cyclic, plannar ,cojugated are aromatic.
Q: Which of the following is anti aromatic?
A: The anti aromatic compound has to be identified.
Q: Which of the following addition reactions is/are not likely to occur? Why?
A: In organic chemistry addition reaction those in which one molecule add in a Organic compound.
Q: Drawr the res onanca structures of benzoic acid. What is hylnid? the resonan a
A:
Q: . Which of the following pure compounds will not hydrogen bond?
A: Hydrogen bond is formed between hydrogen atom(H) and highly electronegative atoms such as Fluorine…
Q: Which of the following molecules is aromatic?
A: Aromatic compounds are those which follows (4n+2)π huckel rule. If n=0 : 2e- n=1 : 6e- n=2…
Q: Consider the following compounds: H ARO МАТ TIC HYD ROC does not follow Huckel rule Choose lacks…
A: As framed by German chemist and physicist Erich Hückel, Huckel's rule states that if a cyclic,…
Q: The aromatic energy diagram below corresponds to an aromatic compound.?
A: Aromatic Compounds: The compounds which follows 4n+2π is rule is called aromatic compound. Also the…
Q: Consider the structure of the following compound: Which of the following statements is INCORRECT?
A: 6. Option -1 :Incorrect (1) The compund contain a sigma molecular orbital formed by the overlapp of…
Q: Determine the molecules below are aromatic. If not, explain why.
A: We have to identify the which of the following given molecules are aromatic as follows in step 2:
Q: Prove the aromaticity of the following molecules by discussing
A: The factors that confer aromaticity to an organic molecule are 1) The molecule should be having a…
Q: Name the following structures
A: Given that we have to give the name for the following compounds :
Q: In nature, COT adopts a "tub-shape," as was shown in class. Assuming the molecule distorts to this…
A: In the given problem we are required to predict whether the cyclooctatetraene is aromatic, non…
Q: Discuss the following: 1- Thiophene is aromatic.
A: The compounds which have planar , conjugated cyclic system and obeys Huckle's rule are known as…
Q: According to Hückel's aromaticity, say if the following compounds are aromatic, anti-aromatic or…
A:
Q: Use IUPAC to name the following molecule:
A: Solution: According to IUPAC rules, we should consider following rules while naming the molecules:…
Q: The parent among all aromatic compounds *
A:
Q: en tell which is aromatic, which anti-aromatic, which non-aroma
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- Elaborat ur answer pls thank uExtraction of DNA involves the use of a 1 M phosphate buffer (1-liter volume) having the hydrogen ion concentration of 6.165950019 x 10-9 M. Three pKa of phosphoric acid are available Concentrated phosphoric acid (85% w/w; Sp. Gr. = 1.70; MW = 98 g/mol) Sodium dihydrogen phosphate monohydrate (MW = 138g/mol) Sodium biphosphate heptahydrate (MW = 268g/mol) Tribasic sodium phosphate monohydrate (MW = 182 g/mol) Sodium hydroxide pellets (40 grams/mol) Question: What is the pH of the solution? (answer in two decimal places) How much of the weak acid component should be used? (Note for answer: Round to the nearest hundredth and include the unit such as "grams or milliliters"; Ex. 100.00 grams or 100.00g for weight & 100.00 milliliters or 100.00 mL for volume) Question: What is the suitable buffer component to be used? (Note for the answer: Separate the two components with “and”; Ex: Ammonia and Ammonium chloride) Question: How much of the salt component should be used?…The chromium in an aqueous sample was determined by pipetting 10.0 ml. of the unknown into each of five 50.0-mL volumetric flasks. Various volumes of a standard containing 12.2 ppm Cr were added to the flasks, following which the solutions were diluted to volume. Unknown,mLStandard, mLAbsorbancc 10.00.00.201 10.010.0 0.292 10.020.0 0.378 10.030.0 0.467 10.040.0 0.554 (a) Plot the data using a spreadsheet. (b) Determine an equation for the relationship between absorbance and volume of standard. (c) Calculate the statistics for the least-squares relationship in (b). (d) I)ctcrmine the conccnt ration oÍCr in ppm in the sample. (e) Find the standard deviation of the result in (d).
- The acid-base indicator HIn undergoes the following reaction in dilute aqueous solution: HIncolor1H++Incolor2 The following absorbance data were obtained for a 5.00 I0-4 M solution of HIn in 0.1 M NaOH and 0.1 M HC1. Measurements were made at wavelengths of 485 nm and 625 nm with 1.00-cm cells. 0.1 M NaOH A485 = 0.075 A625 = 0.904 0.1 M HC1 A485 = 0.487 A625 = 0.181 In the NaOH solution, essentially all of the indicator is present as In-; in the acidic solution, it is essentially all in the form of HIn. (a) Calculate molar absorptivities for In- and HIn at 485 and 625 nm. (b) Calculate the acid dissociation constant for the indicator ¡fa pH 5.00 buffer containing a small amount of the indicator exhibits an absorbance of 0.567 at 485 nm and 0.395 at 625 nm (1.00-cm cells). (c) What is the pH of a solution containing a small amount of the indicator that exhibits an absorbance of0.492 at 485 nm and 0.245 at 635 nm (1.00-cm cells)? (d) A 25.00-mL aliquot of a solution of purified weak organic acid HX required exactly 24.20 mL of a standard solution of a strong base to reach a phenolphthalein end point. When exactly 12.10 mL of the base was added to a second 25.00-mL aliquot of the acid, which contained a small amount of the Indicator under consideration, the absorbance was found to be 0.333 at 485 nm and 0.655 at 625 nm (1.00-cmcells). Calculate the pH of the solution and Ka for the weak acid. (e) What would be the absorbance of a solution at 485 and 625 nm (1.50-cm cells) that was 2.00 10-4 M in the indicator and was buffered to a pH of 6.000?will addition of 300ml 0.005M agno3 to 200ml of 0.004M Al2(SO4)3 result in oreciptation of Ag2SO4 if Ksp of Ag2SO4 is 6.65x10^8?Hexanoic acid was added to an immiscible biphasic solvent sysem, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D1) of hexanoic acid in CCl4 with respect to water.
- Ali has measured the oxidative stability of palm oil sample under accelerated storage condition at 60*C for 6 days The following data were recorded for the peroxide value and p anisidine value of the palm oil after 5 days of storage time: Sample weight 1.0030 g Concentration of NazSzO3 = 0.001 N Volume of NazSzO3 titrated for sample solution = 1.35 ml Volume of NazSzO3 titrated for blank solution 0.20 ml Absorbance for sample solution = 0.907 Absorbance for blank solution 0.203 Calculate: i) peroxide value ii) p-anisidine value iii) TOTOX valueWhat is ΔHsys for a reaction at 16.9 °C with ΔSsurr = -159 J mol-1 K-1 ? Express your answer in kJ mol-1 to at least two significant figures. (Please type answer no write by hend)A 5.00-mL sample of blood was treated with trichloroacetic acid to precipitate proteins. After centrifugation, the resulting solution was brought to pH 3 and extracted with two 5-mL portions of methyl isobutyl ketone containing the lead-complexing agent APCD. The extract was aspirated directly into an air/acetylene flame and yielded an absorbance of 0.527 at 283.3 nm. Five-milliliter aliquots of standard solutions containing 0.400 and 0.600 ppm of lead were treated in the same way and yielded absorbances of 0.396 and 0.599. Find the concentration of lead in the sample in ppm assuming that Beer’s law is followed.
- Given the SEPs: Br2(l) + 2e- ↔ 2Br- E0 = 1.078 V Br2(aq) + 2e- ↔ 2Br- E0 = 1.098 V a. Calculate the Keq for the reaction: Br2(l) ↔ Br2(aq) b. Calculate the solubility of Br2 (159.808) in water at 250C. Express in g/L.4. determine the amount in mg of the amount of Ag present from ICP mass digested: 1.0821g/L dilution of 10ml stock solution to 100ml volumetric flask X=0.98 (intensity)Racah parameter B for [Co(CN)6]3−=460cm−1, and [Co(NH3)6]3+= 615cm−1. Explain the difference in nephelauxetic effect.
