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What is frequency of chemical shift at 1.25 ppm if 400 MHz NMR spectrometer is used?
Explain why saturated sodium hydrogen carbonate is used to wash the organic layer in the Friedel Crafts Acylation.
use curved arrows to show the flow of electrons in each step, and note any relevant charges or lone pairs of electrons.
Calculate the net charge of Aspartic Acid. Its given that Aspartic acid has a pK1 COOH at 1.99 and also a pK2 NH3 group at 9.90
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Cu(s) | Cu2+(aq, 0.0032 M) || Cu2+(aq, 4.48 M) | Cu(s)
Using acetylene as your ONLY source of carbons, show how you would synthesize the following compound. Note: any alkyl halides, alcohols
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
compound noradrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for noradrenaline?
When iron is dissolved in an oxidizing agent, such as sulfuric acid, Fe(II) or Fe(III) will be formed?
The Bracket series of emission lines falls in the infrared region of the em spectrum, and each line is a result of an electron falling from a higher Bohr orbit to the n=4 level.
Performing the elimination with potassium tert-butyl alcohol. At what temperature will the reaction mixture begin refluxing?
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
What is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect? What is the wavelength of this light?
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