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a solution containing 524 mg100 ml of a 335 gmol has a transmittance of 552 in a 150-cm cell at 425 nm calculate the
a solution containing 623 ppm kmno4 had a transmittance of 0195 in a 100-cm cell at 520 nm calculate the molar
the enzyme monoamine oxidase catalyzes the oxidation of amines to aldehydes for tryptamine km for the enzyme is 40 x
the acid-base indicator hln undergoes the following reaction in dilute aqueous solutionthe following absorbance data
the chelate cua22- exhibits maximum absorption at 480 nm when the chelating reagent is present i at least a tenfold
palladium ii forms an intensely colored complex at ph 35 with arsenazo iii at 660 nm33 a meteorite was pulverized in a
the accompanying absorption data were recorded at 390 nm in 100-cm cells for a continuous-variation study of the
the accompanying data were obtained in a slope-ratio investigation of the complex formed between ni2and
the sodium salt of 2-quinizarinsulfonic acid naq forms a complex with alamp39 that absorbs radiation strongly at 560
the method developed in problem 14-11 was used for the routine determination of iron in 250-ml aliquots of groundwater
a standard solution was put through appropriate dilutions to give the concentrations of iron shown below the
when measured with a 100-cm cell a 750 x 10-5 m solution of species a exhibited absorbances of 0155 and 0755 at 475 and
aluminum forms a 11 complex with 2-hydroxy-lmiddotnaphthaldehyde p-methoxyhenzovlhvdraxonal which absorbs uv radiation
a 365-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 ml in a volumetric flask cobalt
mixing the chelating reagent b with niii forms the highly colored nib22 whose solutions obey beers law at 395 nm over a
equations for the chemiluminescence determination of so2 are given on page 425 derive an expression for the
the following volumes of a standard 100 ppb f solution were added to four 1000-mlaliquots of a water sample 000 100 200
the following lifetimes were measured for the chloride quenching of quinine sulfate given in example 15-1 the
the reduced form of nicotinamide adenine dinucleotide nadh is an important and highly fluorescent coenzyme it has an
a 250-ml aliquot of an aqueous quinine solution was diluted to 500 ml and found to have an absorbance of 0656 at 348 nm
a 05990-g pesticide sample was decomposed by wet ashing and then diluted to 2000 ml in a volumetric flask the analysis
the accompanying data 100-cm cells were obtained for the spectrophotometric titration of 1000 ml of pdii with 244 x
ironii ions catalyze the oxidation of luminol by h2o2 the intensity of the resulting chemiluminescence has been shown
the determination in problem 15-9 was modified to use the standard-additon method in this case a 4236-g tablet was
quinine in a 1664-g antimalarial tablet was dissolved in sufficient 010 m hci to give 500 ml of solution a 2000-ml