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Determine how you would make a 100ppb solution of riboflavin from a 50mg/L stock solution. Do the same for preparation of a 500ppb solution from a 50mg/L stock solution.
It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule
at 25degc k 0.090 for the following reaction.h2og cl2og reverse reaction arrow 2 hoclgcalculate the concentrations of
Show in detail the determination of the normalization constant N for a 3d orbital of a hydrogen atom whose wavefunction is Np^2e^(-p/2), where p is (2Z/na)r.
a certain monomer used in the production of polymers has one nitrogen atom and the mass composition 67.90 c 5.70 h and
Given that an atom of a semiconductor has a diameter of 2.45 , what is the maximum number of moles that fit in the channel of a processor chip that is 80.0 long, 84.2 , wide and 435 thick? Assume that the atoms stack in a simple cubic arrangement.
which term in the nswer for part c resists compression? Which term resists stretching? sketch a graph of f(R) at three different temperatures. Does it require more or less force to stretch the polymer as the temp increases?
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
stock solution of Bovine Serum Albumin (BSA), diagram the most accurate procedure so you end up with at least 500 uL each of 5 ug/uL
Draw the product of the following reaction between propanoyl chloride and p-methoxynitrobenzene. Include all formal charges.
If an acid base reaction produces a solution with a pH of 7 at its equivalence point, why does an indicator solution that changes color at either a pH of 5 of 9 work just as well as one that changes at a pH of 7
What is the heat of combustion per gram of butane?
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