6. How many signals on a 'H NMR spectrum would be predicted for the following compounds, which compound will appear more downfield?

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 124. kJ during a ce...

A: Given, Change in energy,∆U = 124. kJ Work done, w = -200 kJ

Q: At 300 K consider a colloidal solution, M = 150 kg/mol, in a gravity field. If the concentration of ...

A: The concentration of colloidal solution can be expressed as: C=C0e-MgzRT                    (1)

Q: ig Kin the lowest kinetic energy, select "2" next to the object with the second lowest kinetic energ...

A: Mass of car = 1600 Kg  Speed of car = 85 km/h  Changing km/h into m/s :-  Speed of car in m/s:-   = ...

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

A:

Q: beaker with 185 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total m...

A:

Q: 2. Calculate [A]/ [HA] ratio of phosphoric acid species presents in blood at pH=7.4. Identify specie...

A: Henderson Hasselbach equation is used in the preparation of a buffer.  pH = pKa + log [base][acid] T...

Q: Proteins Shape Solubility with Intermolecular forces of Functions Water attraction that stabilizes t...

A: a) a-keratin - Shape - α-keratin is a polypeptide chain, typically high in alanine, leucine, arginin...

Q: What I Can Do etivity 1.6: Solve the following stoichiometry problems 1. Using the following equatio...

A:

Q: Post-lab Questions: does this say about the purity of your solid?

A: Answer of 1st question as per guidelines can only answer 1 if you want to ask more send them one by ...

Q: Calculate the [NH₃] in a solution of 0.670 M ammonium cyanide (NH₄CN). Hint: Use the Ka of HCN (4.9 ...

A: Given, Concentration of ammonium cyanide, NH4CN = 0.670 M Ka(HCN) = 4.9×10-10 Kb(NH3) = 1.8×10-5  

Q: Specify the configurations (R or S) at ALL chiral centers in the molecules below. Please note that s...

A: R and S- configuration is named on basis of CIP rule.

Q: What is the theoretical yield of iron in grams if 67 g of CO are reacted with 72 g of Fe2O3? Determi...

A: We have to first calculate limiting reagent.

Q: trhe major product of the following reaction? 2HBR Br Br Br Br Br Br II %3D

A:

Q: Why is it necessary to immerse and store the pH meter in saturated KCl? What is the purpose of satur...

A: pH meter is an instrument which is used to measure the pH of any solution. Since it is an instrument...

Q: What is the pH of a 0.125M oxalic acid (HOOCCOOH) solution at 25 degrees C? [pKa1=1.25 and pKa2=3.81...

A: Given,  The pH of a 0.125M oxalic acid (HOOCCOOH) solution at 25 °C is:[pKa1=1.25 and pKa2=3.81]

Q: What is the chemistry behind why the presence of salt will increase rusting of metals?

A: The solution is given below - 

Q: What is the pH of a solution what is formed when 0.035M HCl(aq) is mixed with 0.045M HBr(aq)?

A: Given that, [HCl]= 0.035 M  [HBr]= 0.045 M  pH of the solution = ? 

Q: Predict & Balance S (aq) -

A:

Q: Unrounded Rounded Calculated Absorbance of År for [HIn] =[In] 0.239966 K, for bromocresol green D.0O...

A: Molar absorption coefficient at 590 nm for In- = 2.85 * 104 M-1cm-1                                 ...

Q: Draw diagram and give detailed explanation of Nucleophilic aliphatic substitution reactions

A: Lewis bases are commonly as nucleophiles in an Nucleophilic aliphatic substitution reaction. Because...

Q: 3 attempts left Check my work Click the "draw structure" button to launch the drawing utility. Draw ...

A: In hydroboration oxidation reaction, H and OH are added to double bond and give anti markovnikov pro...

Q: A 53.1 g sample of aluminum is put into a calorimeter (see sketch at right) that contains 100.0 g of...

A:

Q: y as AS V

A:

Q: What is the molecular formula and what is the molecule

A: The solution is given below - 

Q: Comment on the manufacturing and associated concerns with Ordinary Portland Cement (OPC).

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Q: 13. A hydrogen bond becomes an acceptor when: a. An atom of hydrogen is attached to a relatively ele...

A:

Q: oxidation number

A:

Q: For each system listed in the first column of the table below, decide (if possible) whether the chan...

A: Entropy means randomness. Gases have higher entropy than liquids while liquids have higher entropy t...

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaninants in water is b...

A:

Q: WORD BANK sublimation liquid condensation same evaporation deposition melting solid steam freezing w...

A: In this question different physical processes and physical states are given. The process of converti...

Q: A. Balancing Redox in Acidic Solution Balance the following equation and show your complete solution...

A:

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A: Complete solution is given below in next step

Q: topic:  Proper Use and Calibration of the pH meter What is it necessary to rinse the pH electrode w...

A: It is necessary to rinse the pH electrode with distilled water every after pH reading: 

Q: Prepare a 250-mL buffer with pH = 4.40 from solid reagents benzoic acid (; M = 122.123 ) and sodium ...

A: Buffer solution is prepared by using a weak acid and salt of its conjugate base. Here benzoic acid i...

Q: 6-The PKa of p-chlorobenzoic acid is 3.98, and that of benzoic acid 4.19. Calculate o-value of p-chl...

A:

Q: temperature (in

A:

Q: Me ^CO2Me Ме CO2ME 1,4-Benzoquinone, Pd(OAc)2 H Ме., МеCN Me.,, -OTMS RT, 6 h, 80% (2 steps) See the...

A:

Q: he new temperature of

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Q: Reaction Coordinate + BD B+ Potential Energy

A: Exothermic reaction is a reaction that releases energy from the system to its surroundings, usually ...

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

A:

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group н н ...

A: The name of the functional group is given below

Q: 3/5 Calculating pressure-volume work A mixture of helium and hydrogen gas is expanded from a volume ...

A:

Q: In a purity check for industrial diamonds, a 10.25-carat (1 carat = 0.2000 g) diamond is heated to 7...

A:

Q: Three titration trials were performed and three molar concentrations of NaOH were calculated. The th...

A: We would use formula to calculate standard deviation . 

Q: 1) The condensation reaction between a hydroxyl group and a carboxylic group is found to follow the ...

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Q: а. OCH3 + CH;0,CC=CCO,CH3 (CH3)3SIO b. + CH,=CHNO, CH2OCH3 С. + CH;O,CC=CC0,CH3

A:

Q: concentration

A:

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel ...

A: The ratio of moles of atoms in Ni(CO)4  1 mol Ni  : 4 mol C  : 4 mol O 

Q: The heat of fusion aH, of butane (C,H10) is 4.7 kJ/mol. Calculate the change entropy As when 75. g o...

A:

Q: The molal boiling point elevation constant K, =0.88 °C·kg•mol for a certain substance X. When 67. g ...

A:

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.