A buffer is a mixture of molecules that release or bind H+ in order to maintain a relatively stable pH. Note that the function of a buffer is NOT to keep a solution neutral (at pH 7); its function is to minimize the change in pH when base or acid is added to the solution. Also note that there are many different buffers, and each one will stabilize the pH of a solution only within a specific pH range.
Heidi Fleiss. Heidi Fleiss was born on December 30, 1965 in Los Feliz, California, USA as Heidi Lynne Fleiss. She is an actress, known for Heidi Fleiss: The Would-Be Madam of Crystal (2008), A Woman's Deeper Journey Into Sex (2015) and Sex Tips with Heidi Fleiss and Victoria Sellers (2001). See full bio Â».
Playing Heidi Fleiss: Charlie Sheen 'Really Can Change' the Stigma of Having HIV. 1  Former madam Heidi Fleiss hopes Charlie Sheen can become a role model, and help remove the stigma of having HIV. 2  ET sat down with Fleiss on Tuesday, following the actor's admission on the Today show that he's HIV positive. Sheen memorably testified against Fleiss when she was charged with tax evasion and pandering in 1995, and admitted he had spent $53,000 on 11 of Fleiss's prostitutes.