Which point group do each of the following molecules belong to? CH2Cl2, CH3Cl, C2H4 (ethane), SO3, CH4
Which point group do each of the following molecules belong to? CH2Cl2, CH3Cl, C2H4 (ethane), SO3,...
Determine the symmetry elements and the Point Group of the following molecules: HCN, SO3, PF5
Explain per each of the following molecules why it should or should not show a pure rotational microwave absorption spectrum: (a) H2, (b) HCl, (c) CH4, (d) CH3Cl, (e) CH2Cl2, (f) H2O, (g) H2O2, (h) NH3
which hybridization would you expect for carbon in the following molecules a, CH4, H2CO, HCN, CH2CL2
Which of the following molecules belong to the class AXsubscript2Esubscript2? A) SCI2 B) SO2 C) CS2 D) SO3 explain
1) Which of these molecules have resonance structures? If they have resonance structures, list how many for each. 2) Which of these molecules have an overall dipole moment? CH4 CH2Cl2 CH4O H2O H3O+ HF N2 NH3 C2H4 C2H2 C2H2Br2 C2H6 SO42- NO3- CO2 SCN- CO32- HNO3
For BF3 a) Which point group does it belong to? b) How many fundamental vibrations are expected? c) To what irreducible representations do these belong? d) What vibrations are infrared active and which are Raman active? e) How many lines are coincident in the IR and Raman? f) To which symmetry species do the following vibrations belong? i) symmetric stretch ii) asymmetric stretch
Which one of the following molecules is non-polar? CH3Br IF3 PF5 SOCl2 CH3Cl
List the symmetry number (σ) for each of the following molecules: Cl2, N2O (NNO), H2O, HDO, BF3, CH4, CH3Cl. (Hint: For CH4, note that each of the four C—H bonds represents a three-fold symmetry axis about which three successive 120⁰ indistinguishable rotations are possible.)
which of the following covalent molecules are polar? A) O2. B) OF2. C) CH3Cl. D) HBr. E) SiCl4
In terms of pH tolerance, which group do most human pathogen belong to? In terms of temperature range, which group do most human pathogen belong to? You must explain your reasoning. Please use terms such as acidophile and hyperthermophile to answer these questions.