Answer
is: pH = 8,75.
c(H⁺ or H₃O⁺) = 1,659·10⁻⁹ M
= 1,659·10⁻⁹ mol/L = 0,000000001659 mol/L.
pH = -logc(H₃O⁺).
pH = -log(1,659·10⁻⁹ mol/L).
pH = 8,75.
When pH is less than seven (pH<7),
solution is acidic.
When is equal seven (pH = 7), solution is
neutral.
When pH is greater than seven (pH >
7), solution is basic (like this example).
