Aspectrophotometer measures the transmittance or the absorbance, or both, of a particular wavelength of light after it has passed through a liquid sample. before the transmittance or absorbance of the sample is measured, a cuvette filled only with solvent, called the blank, is placed in the spectrophotometer a measured. select the reason that, after the blank is measured, the cuvette must be placed in the spectrophotometer in the same orientation each time that it is used. the transmittance of the cuvette must be measured in the same place each time. the cuvette will only fit into the spectrophotometer in one orientation. the transmittance of the liquid must be measured in the same place each time. the spectrophotometer will break if the cuvette position is changed during the experiment.
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Chemistry, 22.06.2019 08:30
The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.
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Chemistry, 22.06.2019 20:00
Nitrogen dioxide decomposes according to the reaction 2 no2(g) β 2 no(g) + o2(g) where kp = 4.48 Γ 10β13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)
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Aspectrophotometer measures the transmittance or the absorbance, or both, of a particular wavelength...
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