At 20°c only 0.24 g of an organic acid "a" dissolves in 100. ml of water, but 2.70 g of the same acid dissolves in 100. ml of ether. calculate the value of the partition coefficient.

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

What three things determine the shape and size of a puddle when water is poured out onto a surface

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable