Answer to Question #339167 in Chemistry for lbqlk

Question

If the hydrogen ion concentration of an unknown solution is 4.56E-7, what is its pH and will this form an acid or a base?

Answer 1

Solution:

hydrogen ion = H⁺

[H⁺] = 4.56×10⁻⁷

pH = −log[H⁺]

pH = −log(4.56×10⁻⁷) = 6.34

pH = 6.34

pH < 7 – acidic

Answer: pH = 6.34 (an acid)