1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alinara [238K]
3 years ago
6

How does the way a buffer stabilizes ph during addition of acid differ from the way the same buffer stabilizes ph during additio

n of base?
Chemistry
2 answers:
emmasim [6.3K]3 years ago
5 0

Buffer, is defined as a mixture of a conjugate acid-base pair that can resist changes in pH when small volumes of strong acids or bases are added.  

For example in a buffer of carboxylic acid(CH₃COOH) and its conjugate base(CH₃COO⁻):  

on the addition of strong acid , the acetate ions neutralize the hydronium ions producing acetic acid (which is already a component of the buffer).  

And on addition of strong base , acetic acid consumes the hydroxide ions producing acetate ions (which is also already a constituent of the buffer).  

So no change in pH will be there.

While in the buffer of weak base (NH₃)) and and its conjugate acid(NH₄⁺) .  

On addition of strong acid , ammonia neutralizes the hydronium ions producing ammonium ions  that is already a component of the buffer.

While , on addition of  strong base, ammonium ions consume the hydroxide ions producing ammonia that is already a constituent of the buffer.

So no change in pH will be there.

Thus the way a buffer stabilizes pH during addition of acid differ from the way the same buffer stabilizes pH during addition of base.

rewona [7]3 years ago
4 0

Buffer solution is made up of weak acid or base with its conjugate salt. It resists the change in pH of the solution. When acid or base is added to the buffer solution, the pH gets stabilized but the direction of reaction is opposite. Thus, the reaction is same but the one moves backward and other moves in forward direction.

A buffer solution can be defined as:

HA +NaA

Here, NaA is in dissociated form as follows:

NaA\rightarrow Na^{+}+A^{-}

when acid is added it reacts with A^{-} to form HA and reaction moves in backward direction. When base is added it reacts with HA to form more A^{-}  and reaction moves in forward direction.


If acid is added

You might be interested in
What happens first during cellular respiration?
RUDIKE [14]
Jrueuedjdbdndjdusijdidjsb
Jsjsissisiejddndn
Jsjsjsusi
Dndjshdjxisid
Disjsidi
Did JSU
Isududj
Sksididi
Skshsjsjdisn
The Answer is C
6 0
3 years ago
Which phrase describes a characteristic of an Arrhenius base?
Tom [10]

 The phrase  that describes a   characteristic   of an Arrhenius base is  that Arrhenius  base add  hydroxide  ions  to  the solution ( answer C)

 

      <u><em>Explanation</em></u>

Arrhenius base  is a substance that  increases  the concentration  of OH-  in aqueous  solution.

The Common Arrhenius base are  group 1 and  2 hydroxide  such as LiOH, NaOH ,  Ba(OH)2  among others.  

for  example  NaOH  dissociate  as follows , NaOH  →  Na+(aq) + OH- (aq)


6 0
3 years ago
Read 2 more answers
What is the density of a rectangle solid with dimensions
Hunter-Best [27]

Answer:

5625000gm/cm^3

Explanation:

volume=w*h*l=25*15*5=1875cm^3

density=mass*volume

=1875*3000

=5625000gm/cm^3

8 0
3 years ago
If a plant cell was an office building what were the chloroplasts be? (and why?)
Ierofanga [76]
This would be the coffee machine in the break room. Because the chloroplast creates energy from the sun. and this creates energy from coffee beans to give to the employees
7 0
3 years ago
PLEASE HELP I GIVE BRAINLIEST
antiseptic1488 [7]
I would say that it's C. Seasonal temperatures have dipped over time, but I could easily be wrong, since it's my opinion. A weather condition is defined as the atmospheric conditions that 'comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation. But I believe it could just as easily be B. 150mm of rainfall is a normal average in the city.
6 0
3 years ago
Other questions:
  • Element that has two isotopes has an average atomic mass of 199.7. if 75.56% of the atoms of the element have an atomic mass of
    14·1 answer
  • Dry ice will go directly from a solid to a gas at room temperature. Going directly from a solid to a gas is called_____________
    8·2 answers
  • Which quantity can vary among atoms of the same element?
    7·1 answer
  • Please help with this question:)
    13·2 answers
  • Please Help!!!! Which of the following equations follows the Law of Conversation of Mass
    12·1 answer
  • Which statement best explains why water has a higher boiling point than ethane?
    10·2 answers
  • FIRST TO Answer for free brainlest. GOG GOGOGO
    7·2 answers
  • Circle all that apply for an anion.
    13·1 answer
  • How to know if a single replacement reaction will occur
    5·1 answer
  • Amines are ________. brønsted-lowry bases brønsted-lowry acids neutral in water solution unreactive
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!