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A 50.0 mL aqueous solution containing 1.08g of a blood plasma protein (a molecular compoud) was found to have an osmotic pressure of 5.85 mmHg at 25degreesC. What is the molar mass?
The first step of the Wittig reaction occurs through what kind of mechanism? A. acid-base B. SN2 C. rearrangement D. nucleophilic acyl substitution
Pure silver has a density of 10.50 g/cm3. A 22.8 gram sample reputed to be silver displaces 2.0 mL of water. Is the sample pure silver? and why?
use standard reduction potentials to find the equilibrium constant for the following reaction at 25 degrees C.
Assuming that prior experiments have shown the single-step extraction removes only 71.0 % of the ethanol, what is the mass of ethanol in your original unknown?
A 46.7 mL sample of a 0.557 M aqueous hydrofluoric acid solution is titrated with a 0.225 M aqueous potassium hydroxide solution. What is the pH after 76.4 mL of base have been added
Which elements exist as molecular species in their most stable states at 25 degrees C and 1 atm? iodine, magnesium, sulfur, cesium, carbon, oxygen, phosphorus, neon
consider the following reaction i2g cl2g 2iclga reaction mixture 25ordmc initially contains pi20.150atm and
An adiabatic turbine expands steam from 500oC , 3.5 MPa to 200oC and 0.3 MPa. If the turbine generates 750 kW, what is the flow rate of steam through the turbine
What is the partial pressure of C6H6 in the vapor phase. What is the mole fraction of C6H6 in the vapor phase.
the volume of a gas is 5.80 l measured at 1.00 atm. what is the pressure of the gas in mmhg if the volume is changed to
calculate the molality of a solution prepared by dissolving 19.9 grams of KCl in 750.0 mL of water
Calculate the entropy of unfolding of lysozyme at 25 oC, given that the difference in PCof unfolding is 6.28 kJ/mol/K at both 25 oC and 75 oC. Hint: consider a path of 25 oC (folded)?75.5 oC(folded) ?75.5 oC(unfolded) ?25 oC(unfolded).
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