Answer:
HF has a higher [OH-] than a solution of 1.0 M HCl.
Explanation:
HF is a weak acid. It will be weakly dissociated to give hydrogen ions.
HCl is a strong acid. It will dissociate almost completely so will give more hydrogen ions as compared to HF.
So
a) 1.0 M HF will have lower H₃O⁺ as compared to 1.0 M of HCl.
b) Due to less H₃O⁺ of HF,it will have higher pH as compared to HCl.
c) The product of concentration of H₃O⁺ and OH⁻ is constant at a constant temperature. So if a solution has lower H₃O⁺ as compared to other solution (HCl), it will have higher concentration of OH⁻.
Thus HF has higher OH⁻ concentration than a solution of HCl, of same concentration.
