When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol CH; was formed. What is the quantum yield for the formation of ethene?
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- 17:YV I YV 91U, 30l zain IQ [Template] Photoche... -> Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C;H4 was formed. What is the quantum yield for the formation of ethene?o [Template] Ph... -> Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C2H4 was formed. What is the quantum yield for the formation of ethene? IIFor a tungsten carbene (catalyst) binding to THF (ligand) at 25 oC in per-deuterotoluene solvent, the chemical shift of the unbound catalyst alpha hydrogen was determined to be 794.6 Hz and the peak for the fully bound catalyst alpha hydrogen was observed at 842.4 Hz. Furthermore, the binding constant (or formation constant) Kf was found to be 15.40 M-1. Given the following initial concentrations of catalyst and ligand, calculate the percent THF bound you would expect to see at 25 oC. Record your answer to the nearest tenths of a percent, as a number with no units (Ex. 3.4% ----> enter "3.4") Co = 1.000 M Lo = 0.1000 M
- %OY 1. 90 ull ZAIN IQ 10:49 AM 33% ... مخلف عمر Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C2H4 was formed. What is the quantum yield for the formation of ethene? شفاء 1:13p äclul 21.03.15 >5- In Trans-[PdF.Cl;]F determine l'total, I'tran. Trot. and I'vib., Which mode(s) is (are) active in IR and Raman spectroscopy?Trace amounts of rare clements are found within groundwater and are of interest to goochemists. Earopium and terbium are 30 - lanthanide-scries clements that can be measured from the intensity of their fluorescence emittcd when a solution is illuminated with ultraviolet radiation. Certain organic 25 - compounds that bind Eu(III) and Tb(IIl) enhance the cmission, and substances found in natural waters can decrease 20- the cmission. For that reason it is necessary to use standard Eu (II) additions to the sample to correct for such interference. The graph shows the result of such an cxperiment in which the 15- concentration of Eu(III) and Tb(III) was mcasured in a sample of groundwatler. The x-intercept of the Eu(III) plot is 10- -23.1 ml. and the x-intercept of the Th(III) plot is -9.91 ml. In cach case, 10.00 ml. of the sample solution and 15.00 ml. 5- Tb (III) of an organic additive were added to a scries of live 50 ml. volumctric flasks. The standard Eu(lI) or Th(III) solution (0,…
- ll ZAIN IQ ? 10:49 AM @33% مخلف شفاء ... Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C2H4 was formed. What is the quantum yield for the formation of ethene?O [Template] Ph... -> Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C2H4 was formed. What is the quantum yield for the formation of ethene? تعذر الاتصال. تحق ق من اتصالك بالإنترنت.When a sample of 4-heptanone was irradiated for 100 sec with 313 nm radiation with a power output of 50 W under conditions of total absorption, it was found that 2.8 mmole C2H4 was formed. What is the quantum yield for the formation of ethane?
- Z o [Template] Photo... Homework (1): When a sample of 4-heptanone was irradiated for 150 s with 315nm radiation with a power output of 60 W under conditions of total absorption, it was found that 3.8 mmol C2H4 was formed. What is the quantum yield for the formation of ethene? II5. s) Lithium in blood serum of a manic-depressive patient treated with lithium carbonate is determined by flame emission spectrometry, using standard additions calibration. 100 ul. of serum diluted to I ml gives and emission signal of 6.7 units. A similar solution to which 10 ul of a 0.010 M solution of LINO3 has been added, gives a signal of 14.6 units. Assuming linearity for the signal, what is the concentration in ppm of the lithium in the blood serum?please quickly ,within 1hour thanks ! If it takes longer than an hour, i don't need the answer (1) List the detectors ofHPLC. Describe the advantage and disadvantage for two wideused detectors