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Calculate the expected pH-value of a TRIS buffer solution (at 23oC), which is prepared by mixing 25.0 ml of 0.100M hydrochloric acid with 25.0 ml of a 0.200M TRIS solution and then adding water up to 100 ml (at 23o C, pK is 8.13).
A 0.868 g sample of an unknown acid requires 32.8 mL of a 0.180 M barium hydroxide solution for neutralization. Assuming the acid is diprotic, calculate the molar mass of the acid
Draw the amine from the following: A Hofmann degradation of a primary amine forms an alkene that gives butanal
Draw the structure of the compound you would expect from E2 reaction of 2-chloro-3methylhexane with NaOH.
3. How does infrared radiation compare to visible radiation ? A.) Infrared has more energy than visible. B.) Infrared and visible radiation have similar wavelength and frequency, but are polarized differently.
Five grams of the specified pure solvent is placed in a variable volume piston. What is the volume of the pure system when 50% and 75% have been evaporated at: (i) 30 deg C (ii) 50 deg C?
Problem- suppose you place 1.0 g of Cu(IO3)2 in contact with 50 mL of distilled water and gently stir. Show graphically how the concentrations of Cu2+ and IO3- in solution will change with time,
Draw the structure of (1S,3R,4R)-1-tert-butyl-3,4-dimethylcyclohexane in its lowest energy chair-conformation.
Calculate the molar mass of maltose (which is not an ionic compound). (b) The density of the solution is 1.014 g/mL. Calculate the osmotic pressure of the solution.
How much heat can be obtained by burning 14 pounds of propane? (Remember to look at this from the viewpoint of the surroundings, since the question asks how much heat can be OBTAINED.)
At -14.5 degrees celcius, what is the maximum mass of maltitol (C12H24O11) you can add to a 2.50 kg of pure water and still have the solution freeze. assume that maltitol is a molecular solid and does not ionize when it dissolves in water
Derive the symmetries of the ligand σ orbitals for an octahedral complex. Draw the MO diagram for Cr(CO)6 showing σ bonding only.
on a smoggy day in a certain city the ozone concentration was0.34 ppm by volume. calculate the partialpressure atm of
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