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Dissociation Constant of Weak Acid given pKa Formula

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The Dissociation Constant of Weak Acid is a quantitative measure of the strength of a weak acid in solution. Check FAQs

K a = 10^{- pK a}

K_a - Dissociation Constant of Weak Acid?pK_a - Negative Log of Acid Ionization Constant?

Dissociation Constant of Weak Acid given pKa Example

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Here is how the Dissociation Constant of Weak Acid given pKa equation looks like with Values.

Here is how the Dissociation Constant of Weak Acid given pKa equation looks like with Units.

Here is how the Dissociation Constant of Weak Acid given pKa equation looks like.

1E-5 = 10^{- 5}

1E-5 = 10^{- 5}

1E-5 = 10^{- 5}

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Dissociation Constant of Weak Acid given pKa Solution

Follow our step by step solution on how to calculate Dissociation Constant of Weak Acid given pKa?

FIRST Step Consider the formula

K a = 10^{- pK a}

Next Step Substitute values of Variables

∴

K a = 10^{- 5}

Next Step Prepare to Evaluate

∴

K a = 10^{- 5}

Next Step Evaluate

∴

K a = 1E-05

LAST Step Rounding Answer

∴

K a = 1E-5

Dissociation Constant of Weak Acid given pKa Formula Elements

Variables

Dissociation Constant of Weak Acid

The Dissociation Constant of Weak Acid is a quantitative measure of the strength of a weak acid in solution.

Symbol: K_a

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Dissociation Constant of Weak Acid

Negative Log of Acid Ionization Constant

Negative Log of Acid Ionization Constant gives us the acid ionization constant value on the pH scale.

Symbol: pK_a

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Negative Log of Acid Ionization Constant

Other formulas in Acidity and pH Scale category

Go pH given Activity of Hydrogen Ion

pH = - \log 10 (aH +)

Go Activity of Hydrogen Ion given pH

aH + = 10^{- pH}

Go pH given Concentration of Hydrogen Ion

pH = - \log 10 (H +)

Go Concentration of Hydrogen Ion given pH

H + = 10^{- pH}

How to Evaluate Dissociation Constant of Weak Acid given pKa?

Dissociation Constant of Weak Acid given pKa evaluator uses Dissociation Constant of Weak Acid = 10^(-Negative Log of Acid Ionization Constant) to evaluate the Dissociation Constant of Weak Acid, The Dissociation Constant of Weak Acid given pKa formula is defined as the reciprocal of ten to the power of pKa. Dissociation Constant of Weak Acid is denoted by K_a symbol.

How to evaluate Dissociation Constant of Weak Acid given pKa using this online evaluator? To use this online evaluator for Dissociation Constant of Weak Acid given pKa, enter Negative Log of Acid Ionization Constant (pK_a) and hit the calculate button.

FAQs on Dissociation Constant of Weak Acid given pKa

What is the formula to find Dissociation Constant of Weak Acid given pKa?

The formula of Dissociation Constant of Weak Acid given pKa is expressed as Dissociation Constant of Weak Acid = 10^(-Negative Log of Acid Ionization Constant). Here is an example- 1E-5 = 10^(-5).

How to calculate Dissociation Constant of Weak Acid given pKa?

With Negative Log of Acid Ionization Constant (pK_a) we can find Dissociation Constant of Weak Acid given pKa using the formula - Dissociation Constant of Weak Acid = 10^(-Negative Log of Acid Ionization Constant).

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