Microbiology 9th Edition by Laura Black, Jacquelyn Black

تمرين 7

(a) How is the pH scale used to measure acidity? Among the pH values 3, 5, 7, 11, and 13, which represents (b) the strongest acid and (c) the strongest base? (d) At what pH do you think the bacterium Thiobacillus thioparis can damage ancient marble?