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pKa given Dissociation Constant of Weak Acid Formula

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

pK a = - \log 10 (K a)

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

pKa given Dissociation Constant of Weak Acid Example

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

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

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

5 = - \log 10 (1E-5)

5 = - \log 10 (1E-5)

5 = - \log 10 (1E-5)

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pKa given Dissociation Constant of Weak Acid Solution

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

FIRST Step Consider the formula

pK a = - \log 10 (K a)

Next Step Substitute values of Variables

∴

pK a = - \log 10 (1E-5)

Next Step Prepare to Evaluate

∴

pK a = - \log 10 (1E-5)

LAST Step Evaluate

∴

pK a = 5

pKa given Dissociation Constant of Weak Acid Formula Elements

Variables

Functions

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

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

log10

The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.

Syntax: log10(Number)

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 pKa given Dissociation Constant of Weak Acid?

pKa given Dissociation Constant of Weak Acid evaluator uses Negative Log of Acid Ionization Constant = -log10(Dissociation Constant of Weak Acid) to evaluate the Negative Log of Acid Ionization Constant, The pKa given Dissociation Constant of Weak Acid formula is defined as the negative base-10 logarithm of the base dissociation constant (Ka) of a solution. Negative Log of Acid Ionization Constant is denoted by pK_a symbol.

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

FAQs on pKa given Dissociation Constant of Weak Acid

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

The formula of pKa given Dissociation Constant of Weak Acid is expressed as Negative Log of Acid Ionization Constant = -log10(Dissociation Constant of Weak Acid). Here is an example- 5.958607 = -log10(1E-05).

How to calculate pKa given Dissociation Constant of Weak Acid?

With Dissociation Constant of Weak Acid (K_a) we can find pKa given Dissociation Constant of Weak Acid using the formula - Negative Log of Acid Ionization Constant = -log10(Dissociation Constant of Weak Acid). This formula also uses Common Logarithm (log10) function(s).

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