0
What else can I help you with?
Is salt a buffer?
No, salt is not a buffer. A buffer is a solution that can resist changes in pH when an acid or base is added. Salt is a compound formed by the reaction of an acid with a base, and it does not have the ability to maintain a stable pH.
What combinations of compounds will make a buffer when mixed?
In order to have an effective buffer, one needs to have a weak acid or a weak base, and the salt (conjugate) of that weak acid or weak base. Examples would be :weak acid/conjugate base: acetic acid/sodium acetateweak base/conjugate acid: ammonia/ammonium chloride
What are the constituents of a buffer?
A buffer consists of a weak acid or base and its conjugate salt dissolved in water. The weak acid/base component can donate or accept protons to help maintain the solution's pH by neutralizing added acids or bases.
How to represent the buffer solution?
In general, a buffer system can be represented by writing a salt followed by slash and an acid or conjugate base followed by slash and an acid like salt/acid or conjugate base/acid. Thus, the sodium acetate-acetic acid buffer system can be written asCH3COONa/ CH3COOH or CH3COO-/CH3COOHSimilarly, ammonia-ammonium chloride buffer system can be represented asNH3 / NH4+Note that NH4+ is an acid and NH3 is a conjugate base according to Lewry-Bronsted concept.
Why can a buffer only buffer against a small amounts of acid or base?
A strong acid and a strong base will react together to produce a neutral salt. E.g., HCl (strong acid) and NaOH (strong base) will react together to form H20 and NaCl (salt). The salt is neutral (if you dump table salt into water, the solution will be neutral) this is because the Na+ and Cl- are perfectly happy being charged atoms. If you have something that doesn't really like to be ionized, which is a weak acid or base (for example acetic acid, (vinegar) which is only 1.1% ionized (charged) in a water solution) will only be ionized if something forces it to be ionized, i.e., a strong acid or base. When there is a mixture of a weak acid and its conjugate salt (or weak base and its conjugate salt) a buffer is formed. This is due to the fact that if you add some strong acid it will simply react with the conjugate salt, and if you add some strong base it will react with the weak acid. This is how they "buffer solutions" by keeping things pretty balanced. So to answer your question, a buffer must contain something that is only weakly reactive, and can react further when the need is present. A strong acid/base will totally react, so there is nothing left over to do any buffering.
Is salt a buffer?
No, salt is not a buffer. A buffer is a solution that can resist changes in pH when an acid or base is added. Salt is a compound formed by the reaction of an acid with a base, and it does not have the ability to maintain a stable pH.
Why is HCl and NaCl a good buffer?
No, NaOH is a strong base and NaCl is the salt of a strong acid and a strong base and so has no acidic or basic properties. A buffer solution requires an acidic or basic salt and the corresponding weak acid or base.
A solution containing either a weak acid or a weak acid its saltor a weak base and its salt?
A solution containing a weak acid and its salt will act as a buffer, maintaining the pH by neutralizing added acid or base. Similarly, a weak base and its salt can also function as a buffer. Weak acid-weak base buffer systems are commonly used in chemical laboratories and biological systems to control pH fluctuations.
What combinations of compounds will make a buffer when mixed?
In order to have an effective buffer, one needs to have a weak acid or a weak base, and the salt (conjugate) of that weak acid or weak base. Examples would be :weak acid/conjugate base: acetic acid/sodium acetateweak base/conjugate acid: ammonia/ammonium chloride
Is NaF and NaOH a buffer?
No, NaF and NaOH do not form a buffer solution together as a buffer solution requires a weak acid and its conjugate base, or a weak base and its conjugate acid. NaF is the salt of a weak acid (hydrofluoric acid) and a strong base (NaOH), so it does not act as a buffer. NaOH is a strong base and cannot act as a buffer solution by itself.
What is the word for a solution containing either a weak acid and its salt or a weak base and its salt?
A buffer
Can you use acetic acid for TAE buffer?
you'll need a salt as well. Buffers are made up of an acid/base and its salt.
What are requirements for a buffer solution?
Requirements for a Buffer Solution:There are three requirements for buffer:• Must be a mixture of weak acid and its salt or weak base and its salt• A buffer must contain relatively large concentration of acid to react with added base (OH-) and also must contain similar concentration of base to reaction with added acid (H+).• The acid and base components of the buffer must not consume each other in a neutralization reaction.
When does a buffer have its greatest buffer capacity?
A buffer has its greatest buffer capacity when the concentrations of the weak acid and its conjugate base are approximately equal. This is because the buffer system can efficiently resist changes in pH when there are similar amounts of the weak acid and conjugate base available to neutralize added acid or base.
How do you increase buffer capacity?
Increase the concentration of salt and acid or base. If you are not suppose to increase concentration use more volume of buffer.
Is NaOH and NaCl a buffer system?
No, NaOH and NaCl do not form a buffer system. A buffer system consists of a weak acid and its conjugate base, or a weak base and its conjugate acid, to help maintain a stable pH. NaOH is a strong base and NaCl is a salt, so they do not act as a buffer system together.
What are the constituents of a buffer?
A buffer consists of a weak acid or base and its conjugate salt dissolved in water. The weak acid/base component can donate or accept protons to help maintain the solution's pH by neutralizing added acids or bases.
