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 and 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.
a. the spectrophotometer will break if the cuvette position is changed during the experiment.
b. the transmittance of the cuvette must be measured in the same place each time.
c. the cuvette will only fit into the spectrophotometer in one orientation.
d. the transmittance of the liquid must be measured in the same place each time.
Answers: 2
Chemistry, 22.06.2019 06:30, rosieposie27
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Answers: 1
Chemistry, 22.06.2019 12:30, nekathadon
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
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Chemistry, 22.06.2019 20:30, Schoolworkspace453
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Answers: 2
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