How would you improve the quality of an NMR spectrum?

Q: If 3.81 g of acetic acid (CH3COOH) reacts with 3.66 g of isopentyl alcohol (C5H120) to give 2.60 g…

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Q: se the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

A: Which one of the following options is correct

Q: Use the nernst equation to determine equilibrium potential based on the reverse hydrogen electrode…

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Q: In this net ionic equation of on oxidation reduction reaction, which substance is being oxidized?…

A: Oxidation means lose of electrons and reduction is the gain of electrons.  In a redox reaction both…

Q: Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution…

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Q: ibility and... 18.3 Gibbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule 19.6…

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Q: 09 Select the redox reaction TODA (S A. CO₂ (s) — CO₂(g) B. NH3 + HC NH4C C. 24/₂0+ 0₂ → 2H₂O₂ D. 2…

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Q: rite the balanced neutralization reaction that occurs between H2SO4H2⁢SO4 and KOHKOH in aqueous…

A: In the neutralization process salt and water produce.  H2SO4 have two acidic protons and so for 1…

Q: A fancy purple bag with the inscription "Jade's Jewels" contains 39 assorted gems. Eight (8) of…

A: Given, Number of assorted gems in the jewel bag = 39 Number of turquoise  gems = 8

Q: What is the base in the following chemical reaction? MgH₂(s) + 2H₂O(l) → Mg(OH)₂(s) + 2H₂(g)

A: MgH₂(s) + 2H₂O(l) → Mg(OH)₂(s) + 2H₂(g)  Acid…

Q: If 6.14 g6.14 g of CuNO3CuNO3 is dissolved in water to make a 0.850 M0.850 M solution, what is the…

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Q: H₂O B-2 FORMULA EQUATION: MgCO3 (s) + H₂SO4 (aq) 1) OBSERVATIONS: What two things did you see happen…

A: Magnesium carbonate reacts with dilute Sulphuric acid to yield Magnesium sulphate , water and Carbon…

Q: 22. If the solubility of O₂ at 0.190 bar and 25°C is 7.9 g/100 g H₂O, what is the solubility of O₂…

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Q: A 0.4997 g of unknown acid was titrated with 25.15 mL of 0.5513 N NaOH solution. Calculate the…

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Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a…

A: Given data :

Q: 57.0 mL aliquot of a 0.500 M stock solution must be diluted to 0.100 Assuming the volumes are…

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Q: 3. Draw the structure of the DNA oligomer that would perfectly base-pair with the following sequence…

A: DNA has a double stranded structure and both the strands are complementary to each other.  For…

Q: Which is the starting material in the following reaction? ? A) C) 1. (CH3)2CuLi 2. H₂O i B) D)

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Q: Zinc reacts with hydrochloric acid according to the reaction equation…

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Q: What is the molecular formula of this organic molecule?

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Q: Using the equation for a propanoic acid solution  (CH3CH2CO2H,   p?a=4.874) to calculate the…

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Q: What is the angle between the nitrogen-oxygen bonds in the nitrate (NO3) ion?

A: In order to find the O-N-O bond angle in nitrate ion, NO3-, first we have to plot the Lewis diagram…

Q: (7) 9 solution of ammonium chloride (NHyll) and lead #) acetate (Pb(CH 3 (06) ₂) "produces a solid.…

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Q: Calculate the ΔH°rxn for the reaction shown below. 3 NO2(g) + H2O(ℓ)  →  2 HNO3(aq) + NO(g)…

A: ΔH°rxn is Standard Enthalpy of reaction .  Standard Enthalpy of the following reaction is to be…

Q: 1. How many moles of nitrite ions are present in a sample that contains 3.99 moles of cobalt(III)…

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Q: 1. A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the…

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Q: calculate the evaporation rate initial temperature at 5 seconds = 26.326 degrees celcius…

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Q: 50 mg/day 2. The following regimen for oral How many scored 25-mg tablets and how many 5-mg tablets…

A: 50 mg/day x 10 days 25 mg/day x 10 days 12.5 mg/day x 10 days 5 mg/day x 10 weeks

Q: (Intermediate) Reactant БООсхоÜее о с H:

A: In curved arrow notataion electrons always flow from high electron density to low electron density…

Q: Explain the origin of primary and secondary minima in the force versus distance profiles for two…

A: The is explained by DLVO theory. It is the theory of colloidal dispersion stability in which zeta…

Q: Question 7 How many orbitals are there in each of the following subshells? (a) 6d (b) 5p (c) 7f N A…

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Q: The standard enthalpy of neutralisation between a strong acid and strong base is similar to the…

A: Room temperature is taken as 20oC or 25oC depending on the country. Calculation is done for both the…

Q: From the reaction below, label the reactants as a Lewis base (nucleophile) or a Lewis acid…

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Q: At atmospheric conditions, liquid H2O expands upon freezing. Use the Clapeyron equation to justify…

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Q: Consider the acid-base nature of potassium fluoride, KF, when it is dissolved in water.

A: given  KF dissolved in water

Q: The reaction 2 NO(g) + Br2 (g) = 2 NOBr(g) has Kp = 109 at 25°C. If the equilibrium partial pressure…

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Q: 2. Indicate whether the solution to each of the following problems requires a qualitative analysis,…

A: Quantitative analysis: It is the analysis of the substance that mainly deals with the determination…

Q: When analyzing an IR spectrum, the most significant peaks usually are: a) Given by stretching…

A: IR spectroscopy is used to determine the functional groups present in the sample. Different…

Q: Calculate the wavelength(nm) of light that strikes a metal with a threshold frequency of 2.84 x…

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Q: Consider the reaction.   2NaCl(aq)+Ba(OH)2(aq)⟶BaCl2+2NaOH2NaCl(aq)+Ba(OH)2⁢(aq)⟶BaCl2+2NaOH…

A: Precipitate does not give any ions in the reaction i.e. precipitate is insoluble in water.

Q: What would the speed of each particle be if it had the same wavelength as a photon of violet light…

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Q: Consider the acid-base nature of the salt NH4[C6H5COO], when it is dissolved in water. (1) What are…

A: The compounds which have a pH value of less than 7 are termed as acids. They release hydronium ions…

Q: If a solution containing 100.82 g100.82 g of mercury(II) nitrate is allowed to react completely with…

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Q: A volume of 500.0 mL of 0.170 M NaOH is added to 535 mL of 0.250 M weak acid (?a=3.06×10−5). What is…

A: Given data  The volume of NaOH solution = 500.0 mL = 0.5 L (1 L = 1000.0 mL) The Molarity of NaOH…

Q: What is the thermodynamic (1,4-) product of the following reaction? CI. DCI D = D

A: In electrophilic addition reaction, 1,4 and 1,2 addition products are found. At low temperature 1,2…

Q: Calculate the % ionization of a 0.100M HF solution. The Ka value for HF is 6.4 x 10-4

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Q: mical reaction takes place inside a flask submerged in a water bath. The water bath contains 2.10 kg…

A: Specific Heat capacity is amount of heat required to increase 1 gram of substance by one degree

Q: How many moles of H are there in 3.50 g of dopamine? How many O atoms are present in 1.55 moles of…

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Q: Consider the compounds below: (i) CH3CO2CH2CH3 (II) CH3CH(OH)CN (a) Draw complete Lewis structures…

A: We have been given two compounds and we have been asked to draw complete lewis structure and line…

Q: A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density…

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.