Question

Name: Chemistry 215 Brominating Alkenes (10 pts) 1. Write out the specific reaction that your group performed in the bromination reaction. Include the structures of the starting material and product(s) and make sure that you indicate the stereochemistry at both carbon centers. (3 pts) product: mp 2030 Br H A OH +iBr-Br: - OH cinnamic acid 2. Describe what you observed in the silver nitrate chemical test. What does your observation tell you? (3 pts) " looks milky, not clear "Cloudy" white percipitate formed at bottom Calculate the percent yield. Show your work. Assume that one molecule of pyridinium twibromide produces one molecule of Bra in solution (4 pts)

need help answering question two.
what does your observation tell you about the silver nitrate test?

in the directions we have "the silver nitrate chemical test makes use of strong affinity that Ag(I) cations have for bromine and other halogens, resulting in precipitation of insoluble AgBr from your rcn if the sample contains bromine.
but that doesnt make since completely to me.

help please!

Answer 1

Silver nitrate test, will Rno wn for the Ralidu ions i.e Chleide Cu, Bromide CBr) cand Iodidi (T) in aquous alutions. A olution mixture containinglhalidi ion first diluted with conc. Silver nitrate. This grusults precipitate gt halidus as Ag x ie, silver Ralidus obsnvalons: then addid oith HNO3 f solution contains Cl ion then A uahite Pet. is formed of Agc 3f solution Contains Brion thin A a ppt. is fermid Ag Br xJf Solution eantains I ion thin A paluyellow ppt is formud Agx+ NaNo3 +NaX Solublu) (ppt.)