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A 33.00 sample of an unknown solution is titrated with a 0.110 solution. The equivalence point is reached when 28.38 of solution is added. What is the concentration of the unknown H3PO4 solution?
During an experiment assume that you used a 0.560g piece of pure aluminum in the synthesis of alum and collected 5.255g of dry alum. what is your percent yield of alum?
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
What mass of NaOH is needed to precipitate the Cd2+ ions from 44.0 mL of 0.500 M Cd(NO3)2 solution?
a 50.0 ml sample of vinegar density 1.06 gml was diluted to 500.0 ml.nbsp titration of a 50.0 ml aliquot of this
calculate the molarity of the following solutionsa5.6 mol of sodium chloride dissolved to form 25 l of solution.b5.6 g
particular amino acid in an ion exchange chromatography column. What is the peak width after the amino acid has migrated 100 cm?
In the reaction of lithium, li with nitrogen n2 three lithium atoms react with on nitrogen atom elements lose one electron, atoms of the other element gain three electrons
Calculate the pH of a solution that is 0.25M pyridine, C5H5N and 0.75M in pyridinium bromide, C5NHBr. (Kb for C5H5N= 1.7 * 10^-9)
Determine the pH, percent ionization and all of the equilibrium concentrations for each of the following.
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2
How are the nf and ni values calculated for a Hydrogen Gas Discharge Tube's visible emission spectra
write the structural formula of organic product that would result from the reactionch3-chch2
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