Answer:
The concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.
Explanation:
The H⁺ concentration of a solution is exponentially related to its pH value:
[tex]\rm [H^{+}] = 10^{-pH}[/tex].
For lemon juice:
[tex]\rm [H^{+}] = 10^{-2.0} = 0.01\; M[/tex].
For stomach acid:
[tex]\rm [H^{+}] = 10^{-1.0} = 0.1\; M[/tex].
Thus, the concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.
