You have a solution of .1M HF. What is/are the primary species present? I put and...
You have a solution of .1M HF. What is/are the primary species present?
I put and got wrong: species present: HF, H+, H2O, and F-
What is the correct answer?
Homework Answers
Hi,
0.1 M of solution initially has HF and H2O. The HF being an acid, dissociate in water according to its acid strength.
Due to high electronegativity of fluorine ion, the bond between H and F is very strong and can not be broken easily unlike HCl and other strong acids. Therefore, HF is a weak acid and dissociates partially in water.
The reaction is,
HF + H2O 
H3O+ + F-
The primary species present in solution will be HF and H2O due to low dissociation of HF. But, H3O+ , F- will also be present in very small amounts.
Thank you
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