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What is being asked? Using the values of the effective molar absorptivities you determined from your slopes and the values of the absorption you obtained for the mixture at the spectral maxima of 434 nm and 618 nm, solve the 2x2 simultaneous linear equations for the concentrations of bromothymol blue and thymol blue.
Exposure to high doses of microwaves can cause damage. Estimate how many photons, with wavelength = 12 cm, must be absorbed to raise the temperature of your eye by 3 degrees celcius
what is the molarity of a solution in which 0.800 moles of sodium hydroxide is dissolved in 1500.ml of solution
In which region of the carbon-13 NMR spectrum would you expect to find a resonance for the carbonyl group of an aliphatic ketone. The given chemical shift ranges are approximate. A. 50-80 ppm B. 180-210 ppm C. 100-150 ppm D. 65-85 ppm E. 9-10 ppm ..
Electrical conductivity of a pure semiconductor like Si results from the thermal movement of electrons into the conduction band ii) pure Si doped with arsenic would act as a p-type semiconductor
In the photosynthesis reaction, how is the equilibrium yield of glucose(C6H12O6) affected( increaed, decreased, no change) by the following action water is added.
the following factors controlling the synthesis of acetyl CoA in muscle and liver include all of the following EXCEPT: a. a high carbohydrate meal will influence the movement of fatty acids across the cell membrane by activating a cell membrane car..
Using the table of reductions values explain why silver ion is the reactant and why silver metal is a sacrificial anode that protects mercury from oxidizing into mercury(I) or mercury(II) ion.
Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 9.39? The Ksp of Fe(OH)2 is 4.87×10-17
If 7.1 g of butanoic acid, C4H8O2, is dissolved in enough water to make 1.0 L of solution, what is the resulting pH? A table with Ka values can be found here.
Assume that a solid has a constant of Cp,m=25 J/K-mol from 50K to 298K and that the DeBye approximation is valid from 0K to 50K. Estimate the standard molar entropy Sm for the solid at 298K.
what is the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M?
A copper refinery produces a copper ingot weighing 131 lb. If the copper is drawn into wire whose diameter is 8.25 mm, how many feet of copper can be obtained from the ingot?
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