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the pka of acetic acid (hc2h3o2) is 4.8. what is the ph of a buffer that contains equal concentrations of hc2h3o2 and nac2h3o2? g

Sagot :

SakshiRa

The pH of an acidic buffer that contains equal concentrations of HC2H3O2 and NaC2H3O2 is 4.8.

What is an Acidic Buffer?

These solutions are employed to keep environments acidic, as their name suggests. A weak acid and its salt are combined with a strong base to create an acid buffer, which has an acidic pH. The pH of an acetic acid and sodium acetate solution in water is equivalent at 4.74.

These solutions have PH values below seven.

These solutions are made up of a weak acid and its salt.

A mixture of sodium acetate and acetic acid (pH = 4.75) serves as an illustration of an acidic buffer solution.

Given;

Pka of acetic acid is 4.8;

conc of ch3cooh = conc of ch3cooNa;

now,

[salt]/[acid] = 1

now from the formula,

PH =  Pka + log([tex]\frac{conc of salt}{conc of acid}[/tex])

⇒PH = 4.8 + log(1)

⇒PH = 4.8 + 0

PH = 4.8

The pH of an acidic buffer that contains equal concentrations of HC2H3O2 and NaC2H3O2 is 4.8.

To refer more about Acidic buffers visit:

https://brainly.com/question/602584

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