12. Without performing any calculations, identify which stretching vibration will have the higher frequency in each of the following pairs. Explain. (a) C-O vs. C=O (b) H-Cl vs. H-Br

how do i solve this with the table for inorganic chemistry   a) determine the order of the group b) determine irreducible representations for C-O stretching vibrations in the following molecule T = [   ]A1 +  [   ]A2 +  [   ]E' +  [   ]A1'' +  [   ]A2'' + E''     c) determine the number of IR active C-O stretching vibrations in the above molecule   There are [     ] IR active C-O stretching vibrations.     [   ] equals blank

For a non-linear molecule with 5 atoms, how many vibrational modes does it have? 7 6.

What stretching frequencies (in cm-¹) are present in the structure below? 1715 1745 1800 CI