Solubility Calculations (HSC SSCE Chemistry): Flashcards

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Solubility Calculations
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Molar solubility units

mol L⁻¹

KspK_{sp} applies when

System is at equilibrium (saturated solution)

Ionic product symbol

QspQ_{sp}

When Qsp<KspQ_{sp} < K_{sp}

Unsaturated, no precipitate

When Qsp>KspQ_{sp} > K_{sp}

Supersaturated, precipitate forms

When Qsp=KspQ_{sp} = K_{sp}

Saturated, at equilibrium

Insoluble salt solubility

Less than 1 g L⁻¹

Sparingly soluble salt range

1 to ~10 g L⁻¹

Soluble salt solubility

Greater than 10 g L⁻¹

Formula: mass to moles

n=massmolarmassn = \frac{mass}{molar mass}

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