Question

Which of the following solutions would require the greatest amount of base to be added to bring the solution to

neutral pH?

A) household bleach at pH 12
B) tomato juice at pH 4
C) gastric juice at pH 2
D) black coffee at pH 5
E) vinegar at pH 3
E) The expansion of water vapor extracts heat from the surface.

Answer 1

Gastric juice at pH 2 would require the greatest amount of base to bring it to neutral pH.

Step-by-step explanation:

The solution that would require the greatest amount of base to be added to bring it to neutral pH is gastric juice at pH 2.

In the given options, the solutions with lower pH values are more acidic and require a larger amount of base to reach neutral pH. Gastric juice, with a pH of 2, is the most acidic solution listed. Household bleach at pH 12 is the most basic solution, while tomato juice at pH 4, black coffee at pH 5, and vinegar at pH 3 are all acidic but less acidic than gastric juice. Therefore, gastric juice at pH 2 requires the greatest amount of base to neutralize it.