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.
Sunderland, Massachusetts: Sinauer Associates, Inc. Streptococcus mutans, an oral bacteria found in what seems to be most humans, is considered to be the causative agent for dental caries (or tooth decay or cavities depending on the author of the study).underland, Massachusetts: Sinauer Associates, Inc. Streptococcus mutans, an oral bacteria found in what seems to be most humans, is considered to be the causative agent for dental caries (or tooth decay or cavities depending on the author of the study).