In the bromination reaction of trans-cinnamic acid, a student started with 300 mg oftrans-cinnamic acid and excess bromine. They then obtained 240 mg of pure2,3-dibromo-3-phenylpropanoic acid. What is the % yield of pure2,3-dibromo-3-phenylpropanoic acid?

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure