subject
Physics, 18.12.2019 18:31 meadowsoares7

Which is true for spectroscopy of a mixture?

a. the absorbance for a mixture at a particular wavelength is the sum of the absorbances for the components that absorb at the particular wavelength.
b. spectrophotometers can differentiate between mixture components that absorb at the same wavelength.
c. each component in a mixture has the same molar absorptivity at the same wavelength.
d. the concentration for each component in the mixture is easily calculated with a set of simultaneous equations if there is significant overlap of individual spectra.
e. the concentration for each component in a mixture is easily calculated by least squares for guesses of each component when the individual spectra are well resolved.

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 11:00
1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev
Answers: 3
question
Physics, 22.06.2019 21:30
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmnโˆ’azm)c2?
Answers: 1
question
Physics, 23.06.2019 00:20
What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
Answers: 2
question
Physics, 23.06.2019 12:30
Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. in a survey conducted in an office, 60% of the sample respondents agreed that employees should have flexible working hours. if the margin of error is ยฑ2%, the expected population proportion that wants flexible working hours is between __% and __%
Answers: 1
You know the right answer?
Which is true for spectroscopy of a mixture?

a. the absorbance for a mixture at a part...
Questions
question
Mathematics, 20.07.2019 17:00
Questions on the website: 13722360