Which of the following solutions has the greatest concentration of hydrogen ions [H +]?
A) gastric juice at pH 2
B) vinegar at pH 3
C) tomato juice at pH 4
D) black coffee at pH 5
E) household bleach at pH 12
Answer: A) gastric juice at pH 2
Which of the following solutions has the greatest concentration of hydrogen ions [H +]?
A) gastric juice at pH 2
B) vinegar at pH 3
C) tomato juice at pH 4
D) black coffee at pH 5
E) household bleach at pH 12
Answer: A) gastric juice at pH 2