Let us discuss whether H-H bond should have IR activity in spectrum. If, what is the approximate wavelength that peak locates, if not, explain why.

Q: For the reaction below, the AH° = -113.1 kl/mol and AS° = -145.3 J/K-mol. Calculate the equilibrium…

A: ∆G° =  ∆H°-T∆S° ∆G° = -2. 303 RT logK

Q: 4. Determine the standard enthalpy of formation for butane, 4 C(s, gr) + 5 H2(g) C4H10(g) using the…

A:

Q: 5. Which of the following compounds is identical to the one shown below? H H H -C-C-H H. H-C-H A) H…

A:

Q: Use the information below to make a numerical response question 2 RO; (ag) + 12 H' (aq) + 3 M (9) =…

A: We need to make a numerical response question, based on the given information.

Q: Which of the following ions will react with water in a hydrolysis reaction: OA SO42- O B. Zn2+…

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions when…

Q: Trypsin is a serine protease that has a KM of 15 mM. At an initial substrate concentration of 250 µM…

A: Given that, for a serine protease trypsin The Michaelis-Menten constant is KM = 15 mM = 15×10-3 M,…

Q: What is the titer(expressed in milligrams per milliliters) of a solution of oxalic acid dihydrate…

A: Given that -  Volume of oxalic acid dihydrate Solution = 21.49 mL  Mass of calcium oxide = 0.2203 g…

Q: For the following 9 compounds (most of which were the ones used in this lab), tell me what peaks you…

A: A question based on NMR spectroscopy that is to be accomplished.

Q: 9. Which of the following can form a hydrogen bond? A) 2-fluorobutane B) 2-fluoro-2-butene C)…

A: Hydrogen bonding: The hydrogen atom attached to the electronegative atom like fluorine, oxygen, or…

Q: When the nuclide cesium-129 decays by electron capture: The name of the product nuclide is The…

A: Given,  When Cesium-129 nuclide on electron capture the formed nuclide is:

Q: 1. For the reaction: 2NH3(g) + CO2(g) 5 (NH2)2CO(s) + Hz0(g) AH = - 330 kJ Predict how each of the…

A: The effect of temperature, pressure, volume, amount of the substance to an equilibrium reaction is…

Q: What is the importance of having a titration of about pH 10 in compleximetric titration?

A: In complexometric titration end point is observed by the formation coloured complex.

Q: What is the binding energy in kJ/mol La for lanthanum-139? |k]/mol 57;H+ 82;n The required masses…

A: 521H1 + 82 1n0 --->

Q: A mass of 31.5 g of H20(g) at 373 Kis allowed to flow into 279 g of H2O(1) at 298 K and 1 atm Part A…

A: The heat released by the water vapour(at higher temperature) will be absorbed by the liquid water(at…

Q: A 1.876 g of the sample containing H2C2O4 requires 38.84 mL of 0.1032 M of NaOH for titration:…

A: Answer: This question is based on acid-base titration where acid is the analyte and base is the…

Q: How many grams of CrF, will dissolve in 2 is 108.99 g/mol and Ken 6.6 x 10 11. sp

A:

Q: What quantity in moles of chlorine gas at 120.0 °C and 33.3 atm would Occupy a vessel of 12.0 L?

A:

Q: Use ligand group orbital approach to describe the bonding in [CO3] 2- . Include schematic…

A: Carbonates [CO3] 2-are polyatomic ligands. They are found to bind to two or three metals…

Q: b) Predict the major product of the following reactions and suggest mechanism. NO2 'BUOK CN CO2Et…

A:

Q: NO2 NaOCH2CH3, CH3CH2OH +

A: ->First of all base can abstract acidic hydrogen and form nucleophile which give Michael addition…

Q: 91 The bond length of nitrogen gas is 1.09 A. What is the mean free path of one mole of nitrogen gas…

A:

Q: What is the Molecule weight of sarin gas?

A: Given -> Sarin gas

Q: Given the following standard reduction potentials: Mg+2 = Mg(s) + 2e- E = (-) 2.37 V 2e- + I2(s) =…

A: Dear student the first equuation for Mg given is wrong as Mg2+ ion can never give Mg and 2 e- .

Q: Which of the following are necessary steps in performing paper chromatography?    I. Saturate the…

A: In paper chromatography the necessary conditions are 1. The chamber should be saturated with the…

Q: 19. Which structure is not possible? A) `CH,CH(CH;)2 B) H;C-C-CH; C) CH, 0 CH,-C=ċ-ċ-CH3 D) H;C CH3…

A:

Q: s paramagnetic s diamagnetic = paramagnetic s diamagnetic

A: Electronic configuration of 33As 1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p3 As we know, 'p' can accommodate…

Q: Give the products of each reaction.

A: Here we are required to find the product of the reaction

Q: Give the products of each equation

A: Alkyne gives a hydration reaction in the presence of sulfuric acid and a mercuric acid catalyst to…

Q: For the following pair of carbocations (A and B), select the one that is more stable and explain…

A:

Q: electro chemical cell Znl Zn"ee) | Cu cosm)| Cur constant tempecature , reducing the concentrakion…

A:

Q: Which of the following characterizes an alpha ray? Choose all that apply. ]carries a negative charge…

A: The Beta ray is 2He4 is +2  charged ao it is expected to be attracted by negetive And it has higher…

Q: Draw the structure of the following and exposed each compound to oxidation of…

A: Thiols are similar to alcohols. In thiol -SH functional group present and in alcohol -OH functional…

Q: How many grams of gas are present in each of the following cases? a. 0.100L of CO, at 307 torr and…

A: It is an example of ideal gas equation Here we are required to find the mass of gas present in the…

Q: Which of the following do NOT show the presence of benzylic hydrogen? 1,2-diiodobenzene…

A: The carbon atom attached to the benzene ring is known as benzylic carbon and the hydrogen atom…

Q: Aveage Epone to Radiation from Common Sources Se Dee ey Ntly orng Radat T al a dy Ked R e Mal Nudr C…

A: The data given is,

Q: Balance the following redox reaction using the half-reaction method. Cr+3 + MnO4- = Cr2O7-2 + MnO2

A: Balance the following redox reaction using the half-reaction method Cr+3 + MnO4- ----> Cr2O7-2 +…

Q: he value of Q and determine if a precipitate of CaCO, w 5 M CaCl, is added to 45.0 mL of 0.095 M…

A: Solubility equilibrium of CaCO3 is CaCO3(s) <---> Ca2+(aq.) + CO32-(aq.) Qsp = [Ca2+] [CO32-]…

Q: Given their standard reduction potentials, which of the species is going to be oxidized? Select…

A: Given :-  Cu2+/Cu = 0.34V  Zn2+/Zn = -0.76V  To identify :-  Oxidized species

Q: 3..How many grams of CrF3 will dissolve in 250 mL of water? For CrF3 the molar mass is 108.99 g/mol…

A: Given-> Volume = 250 ml = 0.250 L.     (1L = 1000 ml) Molar mass of CrF3 = 108.99 g/mole Ksp =…

Q: Consider the following reaction where K. = 1.20x10-2 at 500 K: PCI5 (g) PCI3 (g) + Cl2 (g) A…

A: Given :-  PCl5(g) <---> PCl3(g) + Cl2(g)  No of moles of PCl5(g) =0.112 mol No of moles of…

Q: Which of the following characterizes an alpha ray? Choose all that apply. O is attracted to the…

A: A) is attracted to the negatively charged plate in an electric field.

Q: What is the pH of an aqueous solution that consist 40.0 mL of 0.050 M HI and 30.0 mL solution…

A: Mixture of strong and weak acid will release proton. The strong acid will release according to its…

Q: What is the binding energy in kJ/mol nucleons for antimony-123? 8.19x10^11 kJ/mol nucleons 51 H+…

A: The binding energy can be calculated as follows

Q: For the redox reaction given below complete the following: Clo; + SO2 – SO4² + Cr (a) What is the…

A: Let us discuss tge redox reaction.

Q: Write the formula of an alkyne containing 16 carbon atoms.

A: Alkyne is a hydrocarbon containing atleast one carbon-carbon triple bond.

Q: I. Use the IUPAC system to name the following compounds: CI OH CI CH3 a. CH3-CH2- Č - Ċ - C - C=CH…

A:

Q: (a) A hydrogen atom is in an excited 5g state, from which it makes a series of transitions by…

A:

Q: Question 4 The rate of dehydrogenation of sec-butanol on a zinc oxide catalyst at 350°C and 1 atm…

A:

Q: Which of the following characterizes a gamma ray? Choose all that apply. O is not deflected by an…

A:

Q: Which of the following examples best describes Charles' Law? A hot air balloon C. car tire B.…

A: Following problems are related to gas law.  According to Gas law, PV = nRT  Where, P = pressure  V =…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.