pH = 4.3. The hydrogen ion shown above H⁺ is equivalent to the hydronium ion shown.
This material is an ion because it has a charged and is made up of a hydrogen atom with a charge (H+) added. Its formula is H3O+, and it is referred to as the hydronium ion. Whenever an acid comes into contact with water, the hydronium ions are always created. generating H3O+, the acid's H+, by continuously reacting with the adjacent water molecule.
In all alkaline aqueous solutions, the hydroxide ion ion (H3O+), also referred to as nucleophile water, is present. Brnsted acids release one or more of their electrons as h+ ions, which combine with water molecules.
HOCL ⇆ H⁺ + 0CL⁻
Kₐ =H⁺ * 0CL⁻/HOCL
Ka of HOCl = 2.9×10⁻⁸
Kₐ = x²/C
2.9×10⁻⁸ = x²/ 0.100M
x = H⁺= 5.4 * 10⁻⁵
pH = -log H⁺ = 4.3
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