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A sample of cells with a total receptor concentration of 50 mM was incubated with a ligand concentration of 100 mM. Following the incubation period, the concentration of unbound receptors was determined to be 15 mM. What is the Kd for the receptor-ligand interaction?
A) 28 mM
B) 43 mM
C) 143 mM
D) 217 mM
E) 333 mM
A gas is confined to a cylinder under constant atmospheric pressure. When 414 of heat is added to the gas, it expands and does 106 of work on the surroundings.
create a data table to record your data from the procedure. be sure that the data table is neat and organized and that
What is the molar mass of the compound? Express your answer to two significant figures and include the appropriate units
one potential way to reduce the amount of co2 added to the atmosphere is to store it as a compressed gas in underground formations.
If the pressure exerted by ozone,O3 , in the stratosphere is 3x10^-3 and the temperature is 246 K, how many ozone molecules are in a liter?
Show a series of reactions by which acetylene and an alkyl halide could be converted into 2-pentanol. Show all steps and all needed reagents/conditions.
If cholestrol is present in a membrane which end is most likely to be directed to the outer surfaces of the membrane that are closer to the hydrophilic environments of cell cytoplasm or the extracellular space?
The heat of vaporization of a substance is 2800 J/g at its boiling point of 219 degree C. How much of this substance can be vaporized if 62800 J energy are available?
Suppose you have a glass tube which is 1 m long and 2.5 cm in diameter. Concentrated HCl acid is placed at one end of the tube and concentrated NH3 solution is placed at the other end.
an underground iron pipe in damp soil is to be protected from rusting. which of the following techniques would not
Phosphorus-32 is used in the form of Na2HPO4 in the treatment of chronic myeloid leukemia, among other things. (a) The isotope decays by beta-particle emission. Write a balanced equation for this process.
the sun's diameter is 1.4E9m and its effective surface temperature is 5800K. Assume the sun is blackbody and estimate the rate of energy loss by radiation from the sun
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