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Explain A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein?
Describe two different ways by which electrons can move from the valence band to the conduction band.
At what temperature will a gas be at if you allow it to expand from an original 456 mL at 65 celcius to 3.4 L?
A solution of ethanol (C2H6O) in water is sometimes used as s disinfectant. 1.00 L of this solution contains 553 g or ethanol and 335 g of water. What is the mole fraction of ethanol in this solution.
The specific rotation, [?]D, for (-)-malic acid is -27. What is the observed rotation for a solution of 0.75 g of (-)-malic acid in 10 mL of water in a sample tube having a pathlength of 10 cm
How much heat is evolved when 233 g of ammonia gas condenses to a liquid at its boiling point?
how much energy in kilojoules is needed to heat 3.60 rm g of ice from -11.0circ rm c to 30.5circ rm c? the heat of
A 13.53 mL sample of 0.05000 M AgNO3 is added to an ion exchange column; the solution that emerges from the other side is found to be acidic. Titration of the solution that comes out of the column requires 22.75 mL of 0.02000 M KOH
If 150 g of carbon reacts with 250 g Cl2 with an 85% yield, what is the mass of CCl4 produced
In each of the following groups of substances, pick the one that has the given property. Explain your reasoning for each.
Calculate the solubility of Carbon Dioxide in water at an atmospheric pressure of .50 atm.( a typical value at high altitude). Atmospheric Gas: CO2 Mole Fraction
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
Find the number of unpaired electrons, magnetic moment and ligand field stabilization energy (LFSE).
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