Topic: Problem with finding the equation for a buffer solution (Read 951 times)

ryan0927 · « **on:** August 30, 2021, 09:03:31 PM »

An experiment I am planning requires me to prepare an alkaline buffer solution, and I found some sources that said one of 0.1 mol NaHCO₃ and 0.1 mol Na₂CO₃ dissolved in 0.5dm³ distilled water would give a pH value of 9.7. I am not sure how I should find the equilibrium equation for this, as I am not very familiar with such buffers with two salts, as opposed to only one. Thank you in advance for any advice!

Babcock_Hall · « **Reply #1 on:** August 30, 2021, 09:14:56 PM »

A good general piece of advice is to start by writing a balanced equation. In this case, I would write an acid dissociation equation.

ryan0927 · « **Reply #2 on:** August 30, 2021, 11:25:44 PM »

Quote from: Babcock_Hall on August 30, 2021, 09:14:56 PM

A good general piece of advice is to start by writing a balanced equation. In this case, I would write an acid dissociation equation.

How would you do this if there are two salts, though?

Borek · « **Reply #3 on:** August 31, 2021, 03:17:21 AM »

Do you understand how buffers work? You need a conjugate pair: acid and a base. What will be the acid, what will be the base in your case?

Topic: Problem with finding the equation for a buffer solution (Read 951 times)

ryan0927

Problem with finding the equation for a buffer solution

Babcock_Hall

Re: Problem with finding the equation for a buffer solution

ryan0927

Re: Problem with finding the equation for a buffer solution

Borek

Re: Problem with finding the equation for a buffer solution

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