Select the statements that correctly describe buffers. The pH of a buffer soluti

Question

Select the statements that correctly describe buffers. The pH of a buffer solution is determined by the ratio of the concentration of add to the concentration of base. A strong acid added to the buffer solution reacts with the weak acid of the buffer. The Ka of a buffer decreases slightly when a small amount of acid is added to the buffer solution. A buffer is made up of a strong acid and a strong base. The pH of a buffer solution does not change significantly when a small amount of acid is added.

Explanation / Answer

a) The pH of buffer is determined by using Hendersen Equation which also includes the pKa / pKb of buffer

pH = pKa + log [salt] / [acid]

So false

b) The Ka remains constant on addition of any base or acid : So given statement is false

c) Buffer is made up of salt of weak acid / base with strong base / acid And Weak acid / weak base.

So given statement is false

d) True: It will not change on addition of small amount of acid

e) False: The strong acid will react with the salt in the buffer.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.