1
answer
263
views
100
Problem

For access to Textbook Solutions, a Class+ or Grade+ subscription is required.

Textbook Expert
Textbook ExpertVerified Tutor
15 Nov 2021

Given information

The buffer solution is prepared by mixing  is   in hydroxylamine with a significant amount of sodium formate.

The pH of the buffer is .

Step-by-step explanation

Step 1.
A buffer solution is made up of a certain amount of weak acid and its conjugate base, or a certain amount of weak acid and its conjugate base.
When you add a buffer solution to an acid, the conjugate base in the buffer neutralizes it, and when you add a buffer solution to a base, the weak acid neutralizes it.

The moles of components are given by the formula:

Moles of component Molarity  Volume of solution

To the preceding expression, substitute the specified molarity and volume of solution values:

 

 

The value of for the formic acid is .

Let  be the amount of sodium formate added to formic acid.

The Henderson Hasselbalch equation is given by the formula:

To the preceding expression, substitute the computed and provided value:

 

 

The molar mass of sodium formate is .

Moles of component Molarity  Volume of solution

To the preceding expression, substitute the specified molarity and volume of solution values:

   

Unlock all Textbook Solutions

Already have an account? Log in
Start filling in the gaps now
Log in