Draw two different ways to prepare (CH3)2CHCOC(CH3)3 from an acid chloride and an organocuprate reagent. Be sure to draw the skeletal (line-bond) structures of each starting material; condensed structures will not be accepted.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?