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Can you explain the wittig reaction for Organic Chemistry?
naturally occurring isotopes, Re-185 (mass = 184.935 amu) and Re-187 (mass = 186.956 amu). Calculate the percent abundances of the isotopes of rhenium.
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
Show your calculations for preparing the following solutions: 200ml of 20% (w/v) NaOH, 1 liter of 1.0M Tris [molecular weight (wm)= 121.1g/mol], and 100ml of 0.2M EDTA (mw =372.2g/mol)?
A 12 mL sample of a solution of AlBr3 was diluted with water to 42 mL. A 30 mL sample of the dilute solution was found to contain 2.26 M Br-. What was the concentration of AlBr3 in the original undiluted solution
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 278.00 pm then, What wavelength of light would have sufficient energy to ionize the atom
Problem- Why use glacial acetic acid in the bromination of E-stilbene to give the vicinal dihalide 1R, 2S-meso-stilbenedibromide. What is the purpose of using the acetic acid
the resulting acid dichloride is reacted with 20mL butyl amine (density=0.74 g/mL). After work up and recrystallization, 12.5 g of N,N'-dibutyl adipamide is obtained. What is the limiting reagent and percent yield
Calculate the vapor pressure of a solution containing 29.4 g of glycerin (C3H8O3) in 120 mL of water at 30.0 C. The vapor pressure of pure water at this temperature is 31.8 torr
A sample of tap water consists of water, fluoride ions, calcium ions, and several other dissolved ions. The ions are evenly distributed throughout the water. Which term or terms could be used to describe this sample of tap water
Describe how would separate a mixture containing benzoic acid and a neutral substance, benzophenone. Both compounds are insoluble in water and solube in ether.
Tungsten (W) metal, which is used to make incandescent bulb filaments is produced by the reaction
What are the molality and mole fraction of solute in a 34.0 percent by mass aqueous solution of formic acid (CH3OH)?
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