22. The amount of lead in naphtha may be determined by reaction with dithizone and measurement of the absorption of dithizone by a spectrophotometer at a wavelength of A. 318 nm B. 510 nm C. 620 nm D. 825 am 23. The transmittance of a blue molybdenum compound, as measured by a Beckman DU spectrophotometer, is used to determine trace concentrations of A arsenic B chromium C. lead D nickel

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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22. The amount of lead in naphtha may be determined by reaction with
dithizone and measurement of the absorption of dithizone by a
spectrophotometer at a wavelength of
A.
318 nm
B.
510 nm
C.
620 nm
D. 825 nm
23. The transmittance of a blue molybdenum compound, as measured
by a Beckman DU spectrophotometer, is used to determine trace
concentrations of
A arsente
B chromium
C. lead
D
nickel
Transcribed Image Text:22. The amount of lead in naphtha may be determined by reaction with dithizone and measurement of the absorption of dithizone by a spectrophotometer at a wavelength of A. 318 nm B. 510 nm C. 620 nm D. 825 nm 23. The transmittance of a blue molybdenum compound, as measured by a Beckman DU spectrophotometer, is used to determine trace concentrations of A arsente B chromium C. lead D nickel
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