1- Is there a difference between the TLC of the crude and recrystallized in terms of Z/E products? 2- Even though a 1H NMR was not obtained for your product, propose how you could distinguish Z-Stilbene from E-Stilbene using 1H NMR.

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong