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# What is the pKa of HCl (aq)?

Then teach the underlying concepts
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?

#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

1
anor277 Share
Jun 18, 2018

This is not measured in water....

#### Explanation:

..because in water, the protonolysis reaction is more or less quantitative...

$H X \left(a q\right) + {H}_{2} O \left(l\right) r i g h t \le f t h a r p \infty n s {H}_{3} {O}^{+} + {X}^{-}$

This site gives $p {K}_{a}$ values of $- 8.08$, $- 10.3$, and $- 10.7$ for $H C l$, $H B r$, and $H I$ respectively. The order of acidity is what we would expect on the basis of hydrogen-halogen overlap. The other hydrogen halide, $H F$, is NOT a strong Bronsted acid for what reason?

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