ны Санз стог w/solu W solvent CDC3 16 15 14 13 12 11 10 9 8 -7.240 7 6 f1 (ppm) 5 -4.132 F-00'2 4 3 2 -0.014 -0.023 -0.031 0 -1 -2 -3 -4 -2E+05 -2E+05 -2E+05 -2E+05 -2E+05 -2E+05 -2E+05 -2E+05 -2E+05 -1E+05 -1E+05 -1E+05 -1E+05 -1E+05 -90000 -80000 -70000 -60000 -50000 -40000 -30000 -20000 -10000 FO --10000 --20000

Why mass spectrometry is not called as mass spectroscopy:

Am i doing right on this?? Or wrong? (Determining conc of unknown using calibration curve)

9) Sketch a diagram of an atomic absorption spectrometer. Label the nebulizer, light source (be specific), monochromator, and detector. Describe the purpose of each portion of the instrument.

An atomic spectrometer distinguishes the two lines of the Na doublet, which appear at 589.0 and 589.6 nm. For the first it measures a relative intensity of 456; and for the second an intensity of 225. Approximately, indicate the minimum resolving power of the spectrometer in that wavelength region.

(a) Three components in a mixture have varying distribution constants between the mobile phase and the stationary phase. One of the components has a very high distribution constant. Would this component likely elute first or last and how would you design an experiment or modify the components of the separation to make it perform in the opposite manner? (b) One way to dramatically increase the sensitivity of a quadrupole mass spectrometer is to use a technique called selected ion monitoring (SIM).  Explain how this technique works and why it improves sensitivity. Explain what dwell time means. Be sure to draw a diagram and describe how this analysis scheme works. Also, is there a compromise between a wide range of masses scanned and SIM? Explain in easy details.

can the frequency and singlts be found based on the two spectrs for 1HMR and 2CMR and both of them be explained

Given the following size frequency for a dust: Size Interval (um) 7-17.5 17.5-21 21-25 25-28 28-30 30-33 33-36 36-41 41-49 49-70 % by Number 10 10 10 10 10 10 10 10 10 10 a. Plot the cumulative frequency distributions (in %) of the number, surface area, and mass on linear graph paper assuming all particles are spheres with Pp 1.6 g cm ³. = b. Is this a log-normally distributed dust?

For the isomers of C5H10:  (a) find # signals, chem shift ranges, integration, splitting (b) match the isomer to the spectrum

show how for molecule C11H1402 the following fragments may be obtained given the mass spec highest peak was 121 followed by 136, 91, 43 with the parent peak being 178 (the molecular weight) CH3 H3C CH3