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Compute the pH of a polyprotic acid given as well as sketch the titration curves for the following reactions- A 10.0-mL aliquot of 0.100M Na3AsO4 titrated with 0.100M HCL.pK1 = 2.25 pK2 = 6.77 pK3 = 11.60.
using a solution that is prepared nbspby dissolving .702g of fenh42so42middot6h2o in 50ml of h2o having 1 ml of
How many grams of sodium acetate do you need to dissolve in 1.00L of 1.00M acetic acid to produce a buffer with a pH of 4.59
air contains nitrogen oxygen argon and trace gases. if the partial pressure of nitrogen is 587 mm hg oxygen is 158 mm
a 100.0 solution containing aqueous hcl and hbr was titrated with 0.1300 m naoh. the volume of base required to
These electrons cause the emissions of secondary electrons-called auger electrons-from the metal surface. The kinetic energy of the auger electrons depends on the composition of the surface
A) An HBR acid solution has a density of 1.25 g/ml the acid solution is 20% Explain what is the molarity and what is the molality. B) Define what is the normal concentration of 3.2M solution LiI
the water dissociation reaction H2O (l) --> H+(aq) + OH-(aq). What are the standard states for the three species in the two cases? Density of water is 997 kg/m^3.
another part says spectra of caffeine, benzoic acid, and a mountain dew sample in 0.10 M HCl. On a graph it has the points 8.74 mg/L for benzoic acid, 1.5 dilution for mountain dew soda,
A hot air balloon has a volume of 960 l at 18 degrees c. What temp must it be heated to raise its volume to 1200L, assuming the pressure remains constant
explain the order of elution you observed while performing the gas chromatography for this experiment. what property of
Calculate the mass, in grams for a gold sample that absorbs 225 J to change its temperature from 15 Celsius to 47 degrees celsius.
the greek mathematician archimedes is credited with discovering how to verify the amount of pure gold in an
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