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A certain buffer is made by dissolving nahco3 and na2co3 in some water. write equations to show how this buffer neutralizes added h and oh.

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ChemistryHelper2024
- A buffer solution resists the change in pH after the addition of small amounts of acid or base to it.
- The given buffer solution is NaHCO₃ (acid) + Na₂CO₃ (conjugate base).
- NaHCO₃ contains HCO₃⁻ and Na⁺ ions. Na₂CO₃ contains Na⁺ and CO₃²⁻ ions. Na⁺ ions do not show any effect on the pH of a solution.
Therefore, HCO₃⁻ and CO₃²⁻ are responsible for the buffer action.
HCO₃⁻ is the acidic component of the buffer. It neutralizes the small amounts of base added to it producing an equivalent amount of the conjugate base CO₃²⁻.
HCO₃⁻(aq) + OH⁻(aq) → CO₃²⁻(aq) + H₂O(l)
Acid                                conjugate base
CO₃²⁻ is the basic component if the buffer. It neutralizes the small amounts of acid added to it producing an equivalent amount of the conjugate acid HCO₃⁻
CO₃²⁻(aq) + H₃O⁺(aq) → HCO₃⁻(aq) + H₂O(l)
Base                              Conjugate acid
- Therefore, even after the addition of a small amount of acid or base to the buffer, pH remains unchanged. 
mahima6824soni

The equation to show the buffer neutralize added H and OH are

[tex]HCO_3^-(aq) + OH^-(aq) = CO_3^2^-(aq) + H_2O(l)[/tex]

[tex]CO_3^2^-(aq) + H_3O^+(aq) = HCO_3^-(aq) + H_2O(l)[/tex]

What is a buffer?

A buffer is a solution is a mixture of a weak base and a weak acid.

The given equation is

[tex]\rm NaHCO_3 (acid) + Na_2CO_3[/tex]

NaHCO₃ contains HCO₃⁻ and Na⁺ ions

Na₂CO₃ contains Na⁺ and CO₃²⁻ ions.

The ion's HCO₃⁻ and CO₃²⁻ can bring change in buffer.

[tex]HCO_3^-(aq) + OH^-(aq) = CO_3^2^-(aq) + H_2O(l)[/tex]

acid                                   conjugate base

The acidic component of the buffer is HCO₃⁻

The basic component of the buffer is CO₃²⁻

[tex]CO_3^2^-(aq) + H_3O^+(aq) = HCO_3^-(aq) + H_2O(l)[/tex]

Base                              Conjugate acid

Thus, it can show that a small amount of acid or base does not change the pH.

Learn more about pH, here:

https://brainly.com/question/15289741

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