pKb 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 Acid Ionization Constant gives us the acid ionization constant value on the pH scale.ⓘ Negative Log of Acid Ionization Constant [pk_a]			+10% -10%

✖Negative Log of Base Ionization Constant gives us the base ionization constant on a pH scale.ⓘ pKb of Salt of Weak Acid and Weak base [pk_b]

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Formula

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pKb of Salt of Weak Acid and Weak base

Formula

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

Example

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

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pKb of Salt of Weak Acid and Weak base Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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

STEP 1: Convert Input(s) to Base Unit

Negative Log of Hydronium Concentration: 6 --> No Conversion Required
Negative Log of Acid Ionization Constant: 4 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

pk_b = -2*pH+14+pk_a --> -2*6+14+4

Evaluating ... ...

pk_b = 6

STEP 3: Convert Result to Output's Unit

6 --> No Conversion Required

FINAL ANSWER

6 <-- Negative Log of Base Ionization Constant

(Calculation completed in 00.008 seconds)

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

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Created by Shivam Sinha

National Institute Of Technology (NIT), Surathkal

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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

pKb of Salt of Weak Acid and Weak base Formula

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

What is pKb scale?

The pKb is the negative base-10 logarithm of the base dissociation constant (Kb) of a solution. It is used to determine the strength of a base or alkaline solution. The lower the pKb value, the stronger the base. As with the acid dissociation constant, pKa, the base dissociation constant calculation is an approximation that is only accurate in dilute solutions.

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

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

How to calculate pKb of Salt of Weak Acid and Weak base using this online calculator? To use this online calculator for pKb of Salt of Weak Acid and Weak base, enter Negative Log of Hydronium Concentration (pH) & Negative Log of Acid Ionization Constant (pk_a) and hit the calculate button. Here is how the pKb of Salt of Weak Acid and Weak base calculation can be explained with given input values -> 12 = -2*6+14+4.

FAQ

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

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

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

The pKb of Salt of Weak Acid and Weak base formula is defined as the sum of pKa value and the 14, which is the value of pKw with the difference of twice of pH value is calculated using Negative Log of Base Ionization Constant = -2*Negative Log of Hydronium Concentration+14+Negative Log of Acid Ionization Constant. To calculate pKb of Salt of Weak Acid and Weak base, you need Negative Log of Hydronium Concentration (pH) & Negative Log of Acid Ionization Constant (pk_a). With our tool, you need to enter the respective value for Negative Log of Hydronium Concentration & Negative Log of Acid 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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