Brnsted Acids

Electrochemical reductions of fuUerene films in the presence of Brnsted acids yield hydrogenated fullerenes H Cgg, where n depends on the acid, its concentration, and on the electrode potential. Hydrogenated fullerene films behave as semiconductors with increased photoefficiency [67]. 

Co to http //now.brookscole.com/ cracoliceSe and click Coached Problems for an exercise on Brnsted Acids and Bases. 

ACIDS AND BASES. The conventional definition of an acid is that it is an electrolyte that furnishes protons, i.e.. hydrogen ions. H+. An acid is sour to the taste and usually quite corrosive. A base is an electrolyte that furnishes hydroxyl ions, OH . A base is bitter to die taste and also usually quite corrosive. These definitions were formulated in terms of water solutions and. consequently, do not embrace situations where some ionizing medium other than water may be involved. In the definition of Lowry and Brnsted, an acid is a proton donor and a base is a proton acceptor. Acid-base theory is described later. 

Note that this definition is different in at least two major respects from the conventional definition of an arid as a substance dissociating to give H+ in water. The Lowry-Brnsted definition states that for every acid there be a conjugate base, and vice versa. Thus, in the examples cited above. Cl-. OH-, and NH--are the conjugate bases of HCl, H20. and NH3. 

---