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How would you determine an optimal recrystallization solvent for an unknown solid?
Using active extraction (changing the polarity) and a gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
1. find appropriate ligands aromatic with two nitrogen functionalgroups to bind fe nonbsp2co2in the form of dintrosyle
if a 210 mg piece of gold density19.32 bcm3 is hammered into a sheep measuring 2.310 ft. what is the average thickness
What is the net ionic equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form potassium
consider 4.90lnbspnbspof a gas at 365nbspmmhgnbspnbspand 20.nbspnbspnbspcnbspnbsp. if the container is compressed to
A 6.50 x 10^-5 M solution of potassium permanganate has a percent transmittance of 27.3% when measured in a 1.15-cm cell at a wavelength of 525 nm.
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
A dark glass bottle of chemicals is found in cleaning out an old basement. Part of the label has been eaten away with age. Only the last part of the label is readable.
What volume will carbon dioxide originally 30.0 mL at 27°C have at 77°C
I then take a 10.00ml sample of this solution, and titrate it with 0.100M NaOH (aq). During this titration, 69.53ml of titrant are used up by the second equivalence point. How many moles of
Calculate the concentrations of total acetate ion for the 7 solutions below, prepared by mixing the specified volumes of .75 M acetic acid with .75 M sodium acetate
A sample of pure R enatiomer of 3-phenyl-2-butanone racemizes when catalytic amounts of acid are present.How would you account for the observation.
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