a. مگر Total number of signals: List splitting patterns here (and label on molecule): Show spin-spin splitting diagrams for each set of ¹H NMR signals for compound A from Question 2a (except for any singlets). Indicate the coupling constant ranges or relative sizes. 6. A

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Between these 2 compounds, which one will be (R) and which one is (S) configuration? Please draw to explain your answer in detailed..

Can you please help me with this ochem question?

In this chapter, you learned that a molecule that possesses a plane of symmetry must be achiral. It is possible, however, for a molecule to be achiral without possessing a plane of symmetry, such as in cases where the molecule possesses a point of symmetry. If a point of symmetry exists for a molecule, then each atom can be reflected through that point (rather than a plane) to arrive at an identical atom. This molecule, for example, is achiral, yet it possesses no plane of symmetry. Br CI CI Br (a) Convince yourself that the molecule has no plane of symmetry. (b) Draw the molecule's mirror image and show that the molecule and its mirror image are superimposable. (c) Where is the point of symmetry located?

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out what the highest order Cn and Sn axis of rotation are). Be very clear and neat. a) (1 point). Center of inversion (i) in B₂H6 (dimer of BH3) F 0 S F b) (1 point). The highest order rotation axis (Cn) that is present by stating it at its location in OSF4 F Hill B. H F I I BmH H c) (1 point). The highest order improper rotation axis (Sn) that is present by stating it at its exact location in the cyclopentadienyl (C5H5) anion. |

2. Draw the following