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you are given 850 ml glucose stock solution with the concentration 1 M.
How would you make 1L of 200mM glucose solution?
Low concentration replicate samples of Cd-EDTA gave the following counts in a mass spectral measurement: 178.3, 131.2, 144.3, 159.3, 128.3, 197.7, 149.3, 153.9, 143.3, 160.9. Ten measurements of a blank had a mean of 27.7 counts
Why does kininogen bind to glycosaminoglycans easily and why is the binding of kininogen less sensitive to physiological pH changes - How is the binding of HPRG to heparin dependent on pH? Give structural reasons for the binding dependence.
Calculate the pH at the equivalence point in the titration of 54 mL of 0.10 M methylamine with a 0.20 M HCl solution. Ka = 4.4 X 10^-4
Problem- Calculate the difference between delta H and delta U when 1.0 mol of grey tin 5.73.g cm-3 changes t o white tin 7.31gcm-3 under 1*10^6 pa pressure at 298K, delta H =2.1KJ. Calculate the volume changes. 1 Pa=1KG m^-1S^-1
A 0.7995 g sample of a compound containing only uranium and chloride is dissolved in water and excess aqueous silver nitrate is added to precipitate 0.9982 g of silver chloride . Calculate the empirical formula of the compound.
a balloon is partly inflated with 480 liters of helium at sea level where the atmospheric pressure is 996 mbar.the
the volume of NaOH needed to neutralize it and repeats the process several times to determine the concentration of the NaOH solution. She calculates the concentration and uncertainty in the concentration of the NaOH from the titration data.
The activation energy of a certain reaction is 36.2kJ/mol. At 24 ?C , the rate constant is 0.0160s?1. At what temperature in degrees Celsius would this reaction go twice as fast
Above what Fe2+ concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 9.99? The Ksp of Fe(OH)2
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 865 J of energy, to what volume will the gases expand against a constant pressure of 640
the reaction of a particular alcohol with a carboxylic acid is 3.83. What is the calculated yield of the ester?
Calculate the mass of Nitrogen at room temperature dissolved at room temperature in an 80 L aquarium. Assume a total pressure of 1 atm and .78 mole fraction.
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