Question

What is the molarity of hydrogen ions in a 2.7 M solution of the strong acid HCl?

Answer 1

Answer:

You have a strong monoprotic mineral acid.[H3O+] = 2.7⋅mol⋅L−1.

Explanation:

HCl(g)+H2O⇌H3O++Cl−

This equilibrium lies strongly to the right. Thus, the concentration of hydronium ion, H3O+ = 2.7⋅mol⋅L−1.

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Answer 2

The molarity of hydrogen ions in the given solution is 2.7 M

Explanation:

HCl is a strong acid, this means that it completely dissociated into its ions when dissolved in water.

We are given:

Molarity of HCl = 2.7 M

The chemical equation for the ionization of HCl follows:

$HCl\rightarrow H^++Cl^-$

1 mole of HCl produces 1 mole of hydrogen ions and 1 mole of chlorine ions

Molarity of $H^+$ ions = Molarity of HCl = 2.7 M

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