pKa of Salt of Weak Acid and Weak base Calculator

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Ionic equilibrium

Chemical equilibrium

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Relative Strength of Two Acids

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Hydrolysis for Weak Acid and Weak Base

Cationic and Anionic Salt Hydrolysis

✖The Negative Log of Hydronium Concentration gives us the value of hydronium ion concentration on the pH scale.ⓘ Negative Log of Hydronium Concentration [pH]			+10% -10%
✖Negative Log of Base Ionization Constant gives us the base ionization constant on a pH scale.ⓘ Negative Log of Base Ionization Constant [pk_b]			+10% -10%

✖Negative Log of Acid Ionization Constant gives us the acid ionization constant value on the pH scale.ⓘ pKa of Salt of Weak Acid and Weak base [pk_a]

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Formula

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pKa of Salt of Weak Acid and Weak base

Formula

`"pk"_{"a"} = 2*"pH"-14+"pk"_{"b"}`

Example

`"4"=2*"6"-14+"6"`

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pKa of Salt of Weak Acid and Weak base Solution

STEP 0: Pre-Calculation Summary

Formula Used

Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant
pk_a = 2*pH-14+pk_b
This formula uses 3 Variables

Variables Used

Negative Log of Acid Ionization Constant - Negative Log of Acid Ionization Constant gives us the acid ionization constant value on the pH scale.
Negative Log of Hydronium Concentration - The Negative Log of Hydronium Concentration gives us the value of hydronium ion concentration on the pH scale.
Negative Log of Base Ionization Constant - Negative Log of Base Ionization Constant gives us the base ionization constant on a pH scale.

STEP 1: Convert Input(s) to Base Unit

Negative Log of Hydronium Concentration: 6 --> No Conversion Required
Negative Log of Base Ionization Constant: 6 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

pk_a = 2*pH-14+pk_b --> 2*6-14+6

Evaluating ... ...

pk_a = 4

STEP 3: Convert Result to Output's Unit

4 --> No Conversion Required

FINAL ANSWER

4 <-- Negative Log of Acid Ionization Constant

(Calculation completed in 00.004 seconds)

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Home » Chemistry » Equilibrium » Ionic equilibrium » Salt Hydrolysis » Hydrolysis for Weak Acid and Weak Base » pKa of Salt of Weak Acid and Weak base

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Created by Shivam Sinha

National Institute Of Technology (NIT), Surathkal

Shivam Sinha has created this Calculator and 300+ more calculators!

Verified by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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< 13 Hydrolysis for Weak Acid and Weak Base Calculators

Degree of Hydrolysis in Salt of Weak Acid and Weak Base

Go Degree of Hydrolysis = sqrt(Ionic Product of Water/(Concentration of Salt*Constant of Ionization of Acids*Constant Of Ionization Of Bases))

pOH of Salt of Weak Acid and Weak Base

Go Negative Log of Hydroxyl Concentration = 14-(Negative Log of Ionic Product of Water+Negative Log of Acid Ionization Constant-Negative Log of Base Ionization Constant)/2

pH of Salt of Weak Acid and Weak base

Go Negative Log of Hydronium Concentration = (Negative Log of Ionic Product of Water+Negative Log of Acid Ionization Constant-Negative Log of Base Ionization Constant)/2

Concentration of Hydronium ion in Salt of Weak Acid and Weak Base

Go Hydronium Ion Concentration = sqrt(Ionic Product of Water*Constant of Ionization of Acids/Constant Of Ionization Of Bases)

Hydrolysis Constant in Weak Acid and Weak Base

Go Constant Of Hydrolysis = Ionic Product of Water/(Constant of Ionization of Acids*Constant Of Ionization Of Bases)

pKb of Salt of Weak Acid and Weak base

Go Negative Log of Base Ionization Constant = -2*Negative Log of Hydronium Concentration+14+Negative Log of Acid Ionization Constant

pKa of Salt of Weak Acid and Weak base

Go Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant

Ionic Product of Water given Constant of Hydrolysis and Basic Ionization Constant of Weak Base

Go Ionic Product of Water = Constant Of Ionization Of Bases*Constant Of Hydrolysis

Constant of Hydrolysis given Ionic Product of Water and Basic Ionization Constant of Weak Base

Go Constant Of Hydrolysis = Ionic Product of Water/Constant Of Ionization Of Bases

Ionic Product of Water given Constant of Hydrolysis and Acid Ionization Constant of Weak Acid

Go Ionic Product of Water = Constant of Ionization of Acids*Constant Of Hydrolysis

Constant of Hydrolysis given Ionic Product of Water and Acid Ionization Constant of Weak Acid

Go Constant Of Hydrolysis = Ionic Product of Water/Constant of Ionization of Acids

Basic Ionization Constant of Weak Base

Go Constant Of Ionization Of Bases = Ionic Product of Water/Constant Of Hydrolysis

Acid Ionization Constant of Weak Acid

Go Constant of Ionization of Acids = Ionic Product of Water/Constant Of Hydrolysis

pKa of Salt of Weak Acid and Weak base Formula

Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant
pk_a = 2*pH-14+pk_b

What is pKa value?

The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.

How to Calculate pKa of Salt of Weak Acid and Weak base?

pKa of Salt of Weak Acid and Weak base calculator uses Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant to calculate the Negative Log of Acid Ionization Constant, The pKa of Salt of Weak Acid and Weak base formula is defined as the sum of twice of pH value and the pKb value with the difference of 14, which is value of pKw. Negative Log of Acid Ionization Constant is denoted by pk_a symbol.

How to calculate pKa of Salt of Weak Acid and Weak base using this online calculator? To use this online calculator for pKa of Salt of Weak Acid and Weak base, enter Negative Log of Hydronium Concentration (pH) & Negative Log of Base Ionization Constant (pk_b) and hit the calculate button. Here is how the pKa of Salt of Weak Acid and Weak base calculation can be explained with given input values -> -2 = 2*6-14+6.

FAQ

What is pKa of Salt of Weak Acid and Weak base?

The pKa of Salt of Weak Acid and Weak base formula is defined as the sum of twice of pH value and the pKb value with the difference of 14, which is value of pKw and is represented as pk_a = 2*pH-14+pk_b or Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant. The Negative Log of Hydronium Concentration gives us the value of hydronium ion concentration on the pH scale & Negative Log of Base Ionization Constant gives us the base ionization constant on a pH scale.

How to calculate pKa of Salt of Weak Acid and Weak base?

The pKa of Salt of Weak Acid and Weak base formula is defined as the sum of twice of pH value and the pKb value with the difference of 14, which is value of pKw is calculated using Negative Log of Acid Ionization Constant = 2*Negative Log of Hydronium Concentration-14+Negative Log of Base Ionization Constant. To calculate pKa of Salt of Weak Acid and Weak base, you need Negative Log of Hydronium Concentration (pH) & Negative Log of Base Ionization Constant (pk_b). With our tool, you need to enter the respective value for Negative Log of Hydronium Concentration & Negative Log of Base Ionization Constant and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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