Example: Calculate the pH of a buffer solution that initially consists of 0.0400 moles of ammonia and 0.0250 moles of ammonium ion, after 20.0 mL of 0.75 M NaOH has been added to the buffer. Ka for ammonium ion is 5.6 x 10 -10.
There are two types of bacteria. Aerobic bacteria live with oxygen, love the company of food particles in the mouth and feed on sugar. Anaerobic bacteria exist without oxygen and feed off dead skin cells and other bacteria.
Among the many species that live in the tongue are the following: Veillonella atypical, which mostly live in the tongue and saliva. They co-aggregate with many other microbes that are present in the mouth [D1]. F. nucleatum and Porphyromonas gingivalis are located in the tongue [D1].