Determine the bond angle highlighted in red for each given molecule. Choose... o=c=0 Choose... 107 degrees 104.5 degrees Cha109.5 degrees 180 degrees 90 degrees 120 degrees нн H. Choose... CH Choose.. H. H
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- A student draws the picture of ammonia (NH3) in the box below, left, and predicts it will be a flatmolecule with HNH bond angles of exactly 120°. Unfortunately, the student left something out. a. What did the student omit from his drawing? b. What is the actual HNH bond angle of ammonia (based on the draw g above, right)? c. Explain why water, ammonia, and methane (shown below) all have about the same bondangles (close to 109.5°) even though they have different numbers of bonds.The molecule shown below is called furan. It is represented intypical shorthand way for organic molecules, with hydrogenatoms not shown, and each of the 4 vertices representing acarbon atom. (a) What is the molecular formula for furan? (b) How manyvalence electrons are there in the molecule? (c) What isthe hybridization at each of the carbon atoms? (d) Howmany electrons are in the π system of the molecule? (e) TheC¬C¬C bond angles in furan are much smaller than thosein benzene. The likely reason is which of the following: (i) Thehybridization of the carbon atoms in furan is different fromthat in benzene, (ii) Furan does not have another resonancestructure equivalent to the one above, or (iii) The atoms in afive-membered ring are forced to adopt smaller angles than ina six-membered ring.which one of the figures below has every sp3 hybridized atom circled?
- CH3+ and CH3- are two highly reactive carbon species. a. What is the predicted hybridization and geometry around each carbon atom? b. Two electrostatic potential plots are drawn for these species. Which ion corresponds to which diagram and why?What happens to the bond angle (column 4) as the # of lone pairs (column 2) increases? Based on your answer above, do lone pairs or bonds take up more space?Arrrange The Following Molecules In order of decreasing Angle :SO2 , SO3 , SO3-2 , SO4-2
- What is the total number of carbon atoms in this molecule? What is the total number of Hydrogen atoms in this molecule? i. How many sp3, sp2,and sp hybridized carbon atoms are in this compound?In the hydrocarbon: (a) What is the hybridization at each carbon atom in themolecule? (b) How many σ bonds are there in the molecule?(c) How many π bonds? (d) Identify all the 120° bond anglesin the molecule.Write simple valence bond wave functions for formationof bonds between C and H atoms. What C-H compounddoes the VB model predict? What geometry does it predictfor the molecules?
- Draw the following molecule and answer the questions below. H3CCHCHC(O)CH2CCH What is the hybridization/bonding orbital of the bolded atom? What is the hybridization of the bonded atom?The O¬H bond lengths in the water molecule 1H2O2 are0.96 Å, and the H¬O¬H angle is 104.5°. The dipole momentof the water molecule is 1.85 D. (a) In what directionsdo the bond dipoles of the O¬H bonds point? In what directiondoes the dipole moment vector of the water moleculepoint? (b) Calculate the magnitude of the bond dipoleof the O¬H bonds. (Note: You will need to use vector addition to do this.) (c) Compare your answer from part (b)to the dipole moments of the hydrogen halides (Table 8.3).Is your answer in accord with the relative electronegativityof oxygen?1) identify homo and lumo 2) suppose this molecule would have an extra electron .where would you put this extra electron in the atomic and molecular orbital above?