A 1 liter solution contains 0.402 M hypochlorous acid and 0.302 M potassium hypochlorite. Addition of 0.332 moles of hydrochloric acid will:

Lower the pH by several units.

Exceed the buffer capacity.

Explanation:

The options are:

*Raise the pH slightly

*Lower the pH slightly

*Raise the pH by several units

*Lower the pH by several units

*Not change the pH

*Exceed the buffer capacity

The hydrochloric acid reacts with potassium hypochlorite to produce hypochlorous acid. The amount of HCl added is the HClO produced and the KClO consumed. As the moles of HCl > moles KClO, all the KClO is consumed exceeding the buffer capacity and lowering the pH by several units.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

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