Experimental value of pka of NH4+ is 9.61 while the theoretical value is 9.26. Discuss the experiential value when compared with the theoretical value

Q: Briefly describe how a phase-contrast microscope work and the kind of image that it produces. Give a…

A: Phase-contrast microscopy generates an image by using the different refractive indexes and densities…

Q: 4. In an experiment, 0.01000 L sample of sulfuric acid solution reacts completely with 0.0159 L of…

A: Molarity of solution is defined as the number of moles of solute dissolved per litre of solution.

Q: Illustrate the carbocation pathway for the following reactions + HCI + CH3-OH

A: In carbocation pathway reaction proceeds through formation of carbocation and the carbocation must…

Q: Consider the apparatus shown below with the valve closed. The volume and pressure of each gas is…

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Q: Which indication of relative acid strengths is INCORRECT? Select one: O a. CF3CH2COOH > CH3CH2COOH O…

A: Acidic strength of more for the acid which have more tendency to donate H+ ion in aqueous solution.

Q: Determine which of the following species would have this electron configuration:…

A: Here we have to predict chemical species having the given molecular electron configuration.

Q: Draw the products of each acid-base reaction. NaOH b. Na,Co, a. CH3CH,CH, HO, OH

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Q: Calculate the change in entropy that occurs in the system when 23.0 g of isopropyl alcohol condenses…

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Q: Formic acid, HFor, has a K, value of 1.8 x 10-4. You need to prepare 125 mL of a buffer hav- ing a…

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Q: Chemistry Name the compound using mass spec, NMR, and IR.

A: From the mass spectra, it is given that the mass of the unknown compound is 245.32 According to the…

Q: You were given with 0.025 M acetic acid and 0.025 M NaOH. You were then instructed to prepare a 10.0…

A: The required buffer solution is 10.0 mL of 0.02 M acetate buffer at pH 5.5. For acetic acid,…

Q: 1. Titanium has five common isotopes: 46TI (8.000%, 45.95 amu), 47TI (7.800%, 46.95 amu), 48Tİ…

A: Average atomic mass is the weighted average of atomic masses of all the naturally occurring isotopes…

Q: From the titration curve below, estimate the "target pH" to synthesize potassium dihydrogen…

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Q: grams of HF the limiting reactant is? SiO2+4HF=SiF4+2H2O

A: Answer:                            SiO2       +      HF =  Weight            3 g…

Q: वाह क्रण्ला उपलणणर जला कषट अच्पलिपट the For ळा्चनीयवं हवौवै- Phिवगर अभतजीच्य ह, what is the function…

A: We have to tell the function of the di-tert-butyl-dicarbonate in the Merrifield solid-phase peptide…

Q: What is the molar solubility lead(II) bromide when it is added to pure water, if the Ksp (PbBr2) is…

A: Given: The Ksp of PbBr2 = 6.60 × 10-6 We have to calculate the molar solubility lead(II) bromide…

Q: Resources Hint Check Ans Suppose a student needs to standardize a sodium thiosulfate, Na,S,0,,…

A: We have find out the concentration of standard sodium thiosulphate solution.

Q: Wittig Reaction 1. Why did you get the stereoisomer of the product that you did get rather than the…

A: 1. The Z-stereoselective Wittig reaction consists of a stereoselective first step forming the syn…

Q: 1-propanol H3C HO ácido

A: ->Acid can reacts with alcohol in presence of acidic medium and form ester.

Q: Select all that apply. For each pair of isotopes listed, predict which one is less stable. (a) ÓLi…

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Q: Which of the following 2.00 mol in 1.0 Liter aqueous solution will have the highest pOH? Select one:…

A: For any aqueous solution  pH + pOH = pKw  The solution with highest value of pOH have lowest value…

Q: Calculate parts per million Br- in a sample of seawater that is 0.865 mMBr- with a density of 1.025…

A: The concentration of Br- in ppm is given below

Q: Draw the Lewis structure of KrF, and then determine the hybridization of the central atom. A) sp B)…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: neutron emission of Xe 131 544

A: Neutron emission is a type of radioactive decay in which a nucleus disintegrates to another nucleus…

Q: Use the data to find AHim for the reaction. Express your answer in kilojoules per mole. > View…

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Q: What is the frequency of light having a wavelength of 456nm?

A: Given :- wavelength of light = 456 nm  To calculate :- frequency of light

Q: Which element in each pair has a larger ionization energy? (be sure you understand why) Bromine or…

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Q: A product you are compounding requires 40 mL of a 5% ammonia solution. Your stock includes a 29%…

A: To calculate volume of stock solution needed, we would use dilution law.

Q: Please complete the reaction Br LIAIH, Br2 Br FeBra excess Mg

A: Detail solution is given below

Q: 1°F-NMR spectrum of CIF3 exhibits a doublet and a triplet with intensity ratio 2:1. Predict the…

A: NMR spectrum  of ClF3 shows one doublet for two axial F atoms and one triplet for one equatorial F…

Q: Which of the following is the strongest oxidizing agent?   SO2−4SO42−(aq) Li+(aq) I−(aq) MnO4-(aq)…

A: Reduction is a process in which there is gain of electrons and oxidation is a process in which there…

Q: uinine sulfate: -. Bromatometry . Non-aqueous titration in a protophilic solvent edium E.…

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Q: What is the starting material? 1. HCN HO. 2.95% H,SO4, A O The following compound: HO The following…

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Q: 7. The antioxidant BHA and BHT are commonly used as food preservatives. Dhow how BHA and BHT can be…

A: Butylated hydroxy anisole And Butylated hydroxy tolune Are widely used as preservative now a days.

Q: A 10.0 L flask contains 4.80 g of O2 and an unknown amount of N2. The temperature is 300 K and the…

A: Given: The mass of O2 in the flask = 4.80 g Temperature = 300 K The total pressure in the flask =…

Q: Determine the standard cell potential (E0cell) of 2Cr(s) + 3Fe3+(aq) → 3Fe(s) + 2Cr3+(aq) of the…

A: Here Cr is oxidised to Cr3+ . And Fe3+ is reduced to Fe. So Fe3+  will act as cathode. And Cr act as…

Q: How many grams of O2 are required to completely react with 100.0 grams of Fe in the following…

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Q: The graph below shows the distribution of molecular velocities of four gases, NH3, O2, CO2 and Xe,…

A: In  the above question, distribution  curve of four gases are given. Four gases have different molar…

Q: If 3.0 grams of KClO3 are reacted and 1.5 gram of KCl is actually collected, what is the percent…

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Q: Present the 3-membered ring pathway for the following reactions. + Cl2 Br CH3OH

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Q: In your testing, several precipitates are formed and then dissolved as complexes. These are the…

A: The answer is given below

Q: A freshly isolated sample of "Y was found to have an activity of 7.3 x 10° disintegrations per…

A: Initial activity = 7.3 × 105 dps Final activity = 1.9 × 104 dps Time = 14 day + 1 hour + 15 minutes…

Q: マ QUESTION 4 NH Ob. HN HOBN' OS H *HN-NH T Determine the product of the following reaction:

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Q: For the reaction A (g)2B (g), K = 14.7 at 298 K. What is the value ofQ for this reaction at 298 K…

A: We have,  ∆G = RTln(Q/K)

Q: Use the data to find AHn for the reaction. 2 NO2(g) =2 NO(g) + O2(g) Express your answer in…

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Q: What is the pH when 72 moles of acetic acid are added to 105 L of water? Ka = 1.8X10^‐5

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Q: Liquid octane  will react with gaseous oxygen  to produce gaseous carbon dioxide  and gaseous water…

A: Mass of octane =6.9 g Mass of oxygen = 41.0 g

Q: The reaction between nitrogen monoxide and oxygen is given below: 2 NO(g) + 02(9) 2 NO2(9) We…

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Q: Titanium (III) Iodide and mercury (I) acetate are mixed.  Write Molecular equation ,Ionic equation,…

A: The answers are given below

Q: 3. Show how you would synthesises the following compounds starting with benzene, toluene, an…

A: Here we have to synthesize the following given compounds from the given starting material in…