Which of the following is true? The radiational transition S_1 rightarrow S_0 is

Question

Which of the following is true? The radiational transition S_1 rightarrow S_0 is called fluorescence, and the radiational transition T_1 rightarrow S_0 is called phosphorescence. The radiational transition S_1 rightarrow S_0 is called phosphorescence, and the radiational transition T_1 rightarrow S_0 is called fluorescence. The radiational transition S_1 rightarrow S_0 is called fluorescence, and the radiational transition T_1 rightarrow S_1 is called phosphorescence. A sample and its blank had a percent transmittance of 45.4% and 97.5%, respectively. What is the absorbance due to the analyte? 0.11 0.343 0.332 Which of the following is proportional to concentration? percent transmittance transmittance absorbance

Explanation / Answer

* (a) . The radiational transition from S1 to S0 is fluoroscence and T1 to S0 is phosphorescence.

*

* Absorbance is proportional to caoncentration

A = epsilon * b * C

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