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------------------------------------------------ A 25.0 mL sample of a saturated [tex]Ca(OH)_2[/tex] solution is titrated with 0.028 M HCl, and the equivalence point is reached after 38.1 mL of titrant are dispensed. Based on this data, what is the concentration (M) of [tex]Ca(OH)_2[/tex]?

Answer :

Titration is a neutralization reaction with an acid and a base. The concentration of calcium hydroxide Ca(OH)₂ in the reaction is 0.04267 M

How to calculate the concentration reaction?

Given:

Concentration HCl : M₁ = 0.028 M

Volume HCl = V₁ = 38.1 mL

Volume Ca(OH)₂: V₂ = 25.0 mL

Asked:

Concentration Ca(OH)₂: M₂ = ?

Answer:

Formula to answer this question → M₁V₁ = M₂V₂

0.028 x 38.1 = M₂ (25.0)

M₂ = 1.0668/25.0

M₂ = 0.04267 M

So, the concentration of calcium hydroxide in the reaction is 0.04267 M

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