An aqueous solution contains 0.25 M hydrofluoric acid. One Liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) 0.12 mol HCIO4 0.25 mol NalI 0.26 mol NaF 0.26 mol HCIO,
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![**Creating a Buffer Solution from Hydrofluoric Acid**
An aqueous solution contains **0.25 M hydrofluoric acid**.
## Objective:
Convert one liter of this solution into a buffer by adding an appropriate substance.
(Assume that the volume remains constant as each substance is added.)
### Choices for substances to add:
- [ ] **0.12 mol HClO₄**
- [ ] **0.25 mol NaI**
- [ ] **0.26 mol NaF**
- [ ] **0.26 mol HClO₄**
- [ ] **0.062 mol Ca(OH)₂**
### Explanation:
A buffer solution consists of a weak acid and its conjugate base or a weak base and its conjugate acid. In this context, you have **hydrofluoric acid (HF)**, which is a weak acid.
To form a buffer solution, you need to add a substance that will provide the conjugate base of HF, which is the fluoride ion (F⁻).
Among the choices, **0.26 mol NaF** is the correct option because it will dissociate in water to provide F⁻ ions, thus forming a buffer with HF.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab4efe3b-fd54-4aa0-8660-b031c889fb2d%2F30878035-149b-43b8-a5ac-15a3c79e7b89%2Fmhqstea_processed.png&w=3840&q=75)
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