Benzoyl peroxide is a common medication to treat acne. It is also used to bleach hair and teeth. The molar mass of benzoyl peroxide is 242 g/mole. The percent composition is 69.4%
carbon, 4.2% hydrogen and 26.4% oxygen. Determine the empirical and molecular formula
of benzoyl peroxide.

Explanation for basic character?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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.