Answer :

Answer:

0.246M

Explanation:

0.123M x 2 = 0.246M

Due to Sr(OH)2  has the coefficient of 2.

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C  is 0.246M

What is Concentration ?

The amount of a solution's solute to either the solvent or the entire solution is called Concentration.

The most common way to express concentration is in terms of mass per unit volume.

The solute concentration, on the other hand, can be expressed in moles or units of volume.

We assume

Sr(OH)2 is a strong base, such that

Sr(OH)₂(s) + H₂O(l) −−−→Sr²⁺(aq)+2OH⁻aq)

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C

= 2 * 0.123

= 0.246 M

As two  [OH⁻] are being produced by Sr(OH)₂ .

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C  is 0.246M.

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