The sum of pH and pkb for a basic buffer solution is 13. The ratio of ...
Option 4) 0.1 is correct because
The sum of pH and pkb for a basic buffer solution is 13. The ratio of ...
Solution:
Given:
The sum of pH and pKb for a basic buffer solution is 13.
Let's break down the problem into smaller steps to find the ratio of concentration of the base to that of the salt.
Step 1: Understanding pH and pKb
pH is a measure of the concentration of hydrogen ions (H+) in a solution and is used to determine if a solution is acidic, neutral, or basic. The pH scale ranges from 0 to 14, where a pH below 7 is acidic, a pH of 7 is neutral, and a pH above 7 is basic.
pKb is the negative logarithm of the base dissociation constant (Kb) and is used to measure the strength of a base. It is similar to the pH scale but specifically measures the basicity of a solution. The pKb scale ranges from 0 to 14, where a pKb below 7 indicates a strong base and a pKb above 7 indicates a weak base.
Step 2: Relationship between pH and pKb for a basic buffer solution
In a basic buffer solution, the pH and pKb are related by the equation:
pH + pKb = 14
This equation holds true for all basic buffer solutions.
Step 3: Applying the given information
In this problem, we are given that the sum of pH and pKb is 13.
pH + pKb = 13
Using the relationship mentioned in Step 2, we can rewrite the equation as:
14 - pKb + pKb = 13
Simplifying the equation, we get:
14 = 13
This is not possible, which means the given information is incorrect or inconsistent.
Conclusion:
Based on the given information, there is no valid solution to determine the ratio of concentration of the base to that of the salt.
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