Which of the following has the greatest concentration of hydrogen ions?
a. Household ammonia at pH 11
b. Baking soda at pH 9
c. Human blood at pH 7
d. Black coffee at pH 5
e. Cola at pH 3
Answer: E
Which of the following has the greatest concentration of hydrogen ions?
a. Household ammonia at pH 11
b. Baking soda at pH 9
c. Human blood at pH 7
d. Black coffee at pH 5
e. Cola at pH 3
Answer: E