Which of the following pairs of substances can be used to make a buffer solution?

Which of the following pairs of substances can be used to make a buffer solution?

Buffers do so by being composed of certain pairs of solutes: either a weak acid plus a salt derived from that weak acid or a weak base plus a salt of that weak base. For example, a buffer can be composed of dissolved HC 2H 3O 2 (a weak acid) and NaC 2H 3O 2 (the salt derived from that weak acid).

Would HF and NaF make a buffer solution?

Execution of Strategy: (a) HF and NaF are mixed. HF and F- will both be present. This will make a buffer. The amounts are basically irrelevant since neither one is ridiculously small.

What could be added to a solution of sodium acetate to produce a buffer?

The solution is sodium acetate. Therefore, we can form a buffer with: acetate + acetic acid → buffer.

What is a buffer and why is it important?

A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable. This is important for processes and/or reactions which require specific and stable pH ranges.

What are buffers in anatomy?

A buffer is a chemical system that prevents a radical change in fluid pH by dampening the change in hydrogen ion concentrations in the case of excess acid or base. Most commonly, the substance that absorbs the ions is either a weak acid, which takes up hydroxyl ions, or a weak base, which takes up hydrogen ions.

What is another word for contingency?

Some common synonyms of contingency are crisis, emergency, exigency, juncture, pinch, straits, and strait. While all these words mean “a critical or crucial time or state of affairs,” contingency implies an emergency or exigency that is regarded as possible but uncertain of occurrence.

What is an allay?

transitive verb. 1 : to subdue or reduce in intensity or severity : alleviate expect a breeze to allay the heat. 2 : to make quiet : calm trying to allay their fears.

What barrier means?

: something (such as a fence or natural obstacle) that prevents or blocks movement from one place to another. : a law, rule, problem, etc., that makes something difficult or impossible. : something that makes it difficult for people to understand each other.