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the mass absorption coefficient for ni measured with the cu ka line is 492 cm2g calculate the thickness of a nickel
a 250-ml aliquot of a solution that contains 79 ppm ironiii is treated with an appropriate excess of kscn to form the
the equilibrium constant for the reactionis 42 x 1014 the molar absorptivities for the two principal species in a
describe the differences between the following and list any particular advantages possessed by one over the othera
a portable photometer with a linear response to radiation registered 638 mua with the solvent in the light path the
the following data were taken from a diode-array spectrophotometer in an experiment to measure the spectrum of the
describe the origin of shot noise in a spectrophotometer low does the relative uncertainty vary with concentration if
zincii and the ligand l form a 1 1 complex that absorbs strongly at 600 nm as long as the molar concentration of l
a solution containing the complex formed between biiii and thiourea has a molar absorptivity of932 x 103 l mol-1 cm-1
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