Answer:
pH = -1
Explanation:
A solution of 10 mol·L⁻¹ HCl is very acidic.
HCl is a strong acid, so it dissociates completely in water and
[tex][\text{H}_{3}\text{O}^{+}] = \text{10 mol/L}[/tex]
To get the pH, you take the negative logarithm of the hydronium ion concentration.
[tex]\text{pH} = -\log{(10)} = -1\\[/tex]
So, a pH = -1 represents a very acidic solution.
