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Humans have three types of cone cells in their eyes, which are responsible for color vision. Each absorbs a certain part of the visible spectrum. Suppose a particular cone cell absorbs light with a wavelength of 572.
nm
Calculate the frequency of this light.
Depict a molecular energy level diagram for the water molecule, and fill in the electrons and is the multiplicity of water a single t
What types of bonds are responsible for the secondary structure of a protein? How would the addition of a heavy metal affect the secondary structure of a protein?
The standard enthalpy of formation for ammonia NH3 is -46.2kj/mol. How much heat is released/absorbed when 1 mole of N2 is reacted with three moles of H2 to produce ammonia
Molecular equation reaction for copper sulfate penta-hydrate with heat (state of reactants and products must be shown) then when the anhydrous copper sulfates with water
What is this experiment designed to measure? What can the results NOT tell us about the experiment? What special safety precautions do you need to be aware of for this experiment?
two gases are contained in gas bulbs connected by a valve. gas a ispresent in a 44 l bulb at a pressure of 381 torr.
Calculate the osmotic pressure generated when 14.6 grams of estrogen are dissolved in 275 ml of a benzene solution at 298 K. What is the molarity and osmotic pressure
what ions will the following elements form?
Identify the orbitals to which a 4d electron may make an emission transition in the hydrogen atom and determine the dissociation energy of the molecule
(A) What are the consequences of early melting on the lifecycle of river dwelling fish? (B) Which of these do you think poses the greatest threat to fish?
at 273 k and 1.0010-2 atm the density of a gas is 1.2410-5 gcm3 a find vrms for the gas molecules bfind the moloculer
How many tons of coke are needed per week to produce 8.51×104 of pig iron from a modern blast furnace using hematite. Assume that coke is pure carbon, pig iron is pure iron, and all reactions have 100 yield.
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