Kb from pkb Calculator (pkb to kb converter)

The formula to calculate K_b from the pK_b value is –

∴ K_b = 10^-pKb

pKb to Kb calculator

pK_b to K_b Calculator

pK_b value =

[K_b] =

How to use pK_b to K_b calculator?

Using the above calculator you can easily convert the pK_b value to K_b.

Enter a pK_b value in the input field labeled “pK_b value =”.
Click the “Calculate” button.
The result [K_b] will be displayed in the “result” section with Step by Step solution.

How to calculate K_b from pK_b?

pK_b is the negative logarithm of K_b to the base 10 as shown in the formula given below:
∴ pK_b = -log₁₀(K_b)

Above equation can be transferred by taking antilog –

∴ K_b = 10^-pKb

Example of calculating K_b value using “pK_b to K_b calculator”

Let’s say we have given the value of pK_b and we need to calculate the K_b value.
For example – If the pK_b value = 3.14, what is the [K_b] value?

As we know, the formula to convert pK_b to K_b is –

∴ K_b = 10^-pKb

So, just put the value of pK_b in the respective field and then press calculate button.

∴ So, The base dissociation constant (K_b) for the given pK_b value is 0.000724 or 7.24 x 10^-4.

Numericals based on “Converting pK_b value to K_b“

What is the value of the base dissociation constant (K_b) for the basic solution, given its pK_b value of 11.62?

To find the value of the base dissociation constant (K_b) for the basic solution, we can use the equation given below –
⇒ K_b = 10^-pKb

We have given, the pK_b value which is 11.62

∴ [K_b] = 10^-11.62

= 2.40 x 10^-12

So, the base dissociation constant (K_b) for the given pK_b value is 2.40 x 10^-12

The pK_b for ammonia is 4.80. What is the K_b value for ammonia?

As the pK_b value for ammonia is given in the question statement. So we can substitute it into the equation given below to find K_b as follows.
∴ K_b = 10^-pKb

∴ K_b = 10^-4.80 = 1.58 x 10^-5.

So, the base dissociation constant (K_b) value for the given pK_b of ammonia is 1.58 x 10^-5.

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About the author

Vishal Goyal

Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn: https://www.linkedin.com/in/vishal-goyal-2926a122b/

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