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Hemoglobin has a positive charge of +5 and a radius of 3.55 nm in water. How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP
(1cP = 0.01 g cm^-1 s^-1)?
A sample of nitrogen gas in a 4.4-L container at a temperature of 35°C exerts a pressure of 3.7 atm. Calculate the number of moles of gas in the sample.
In what direction do the functions point? What orbitals are"left" unused on the C atom?
Benzene is evaporated into a room at 1 gram per minute the room is 6 by 6 by 3 meters and has a ventialtion rate of 10 meters cubed per minute what is the steady state concentration of benzene in the room
calculate the molar absorptivity (epslion) of Cu2+ at 620nm given that the curvettes used in lab had a pathlegth of 1.00 cm.
What are the equilibrium partial pressures of CO and CO2 if CO is the only gas present initially, at a partial pressure of 0.988 atm?
suppose you titrate a 25 ml sample of vinegar with 17.62 ml of a standardized 0.1045 N solution of NaOH. what is the molarity of acetic acid in this vinegar?
If a 180 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.51.0 , what is the average thickness of the sheet in meters?
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.34g and its initial temperature is 21.0?C.
Explain, phenomena in terms of atomic structure and behavior. When you lightly bump into a car, why does it dent and not create a hole.
If 30.0 L of oxygen gas is cooled from 473 K to 274 K at constant pressure, what is the new volume of oxygen
Container A (with porous walls) is filled with air at STP. It is then inserted into a large enclosed container (B) which is then flushed with H2(g). What will happen to the pressure inside container A?
Hydrogen and oxygen react under a specific set of conditions to produce water according to the following equation. 2 H2(g) + O2(g) -> 2 H2O(g)
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