Linked Questions

1 vote
0 answers
863 views

Why isn't an Acid-base titration curve linear? [duplicate]

Sorry if this is a stupid question, but why is a acid-base titration curve not linear? As you add more acid solution to a basic solution, shouldn't the pH of the basic solution slowly go up in ...
Nikki Chin's user avatar
2 votes
0 answers
49 views

Titration curve of strong acid with strong base [duplicate]

I have a question regarding the titration curve for $\ce{HCl}$ titrated with $\ce{NaOH}$. Why does it look like it does, with a steep slope near the equivalence point and a flat slope at the beginning ...
user22015's user avatar
12 votes
5 answers
41k views

How to determine the pH of a mixture of two weak acids?

We have two solutions: Solution 1 is $\ce{HCOOH}$, its concentration is $c_1 = \pu{10^-2 mol/l}$, its volume is $V_1 = \pu{50 ml}$, and its $\mathrm{pH}_1 = 2.9$. Solution 2 is $\ce{CH3COOH}$, its ...
Hedwig's user avatar
  • 121
7 votes
2 answers
17k views

What is causing the buffer region in a weak acid - strong base titration?

For the buffer region in this, why does it stop the pH from increasing? At the start: $$\ce{CH3COOH + NaOH -> CH3COONa + H2O}$$ Which means there will be a high amount of salt in the solution, ...
user45953's user avatar
9 votes
3 answers
6k views

Is the Henderson–Hasselbalch equation volume independent?

Looking at this equation $\mathrm{pH} = \mathrm{p}K_\text{a} +\log\frac{[\ce{CB}]}{[\ce{A}]}$ makes me think that it is concentration independent. What I mean is, when we look at $\frac{[\ce{CB}]}{[\...
Tony's user avatar
  • 91
12 votes
1 answer
2k views

How to analyze a acid and salt mixture using titrimetry?

Given a mixture of $\ce{HCl}$ and $\ce{MCl3}$ and the following dissociation constants for $\ce{M(OH)3}$, how can the concentrations of $\ce{HCl}$ and $\ce{MCl3}$ be determined separately by titrating ...
user avatar
4 votes
2 answers
2k views

Inflection point, slope, and equivalence point in a titration

My textbook, Harris 7th Edition Quantitative Chemical Analysis, says: In titrations involving 1:1 stoichiometry of reactants, the equivalence point is the steepest point of the titration curve. ...
Cyclopropane's user avatar
  • 2,069
1 vote
4 answers
2k views

Why is there an increase in the pH at the start of a titration between a weak acid and a strong base?

Why is there an increase in the pH at the start of a titration between a weak acid and a strong base even though there is acid already present to neutralize it? My intuition says that there should not ...
Nikhil Verma's user avatar
4 votes
1 answer
4k views

Why is the vertical part of a titration curve longer for a strong acid by a strong base than for a weak?

As the title says, I would like to understand chemically why this occurs. My theory behind it is that in the former case both are completely dissociated, and so at the equivalence point (and ...
user11629's user avatar
  • 972
3 votes
1 answer
552 views

pH Curves for Titrations

Why does the pH rapidly increase near the equivalence point during--why does the slope of the graph of a pH curve sharply increase around this area?
asdf's user avatar
  • 205
0 votes
1 answer
644 views

pH Curves- Anomalies

In class, the other day, we were discussing pH curves. Assume that I have HCl and NaOH of concentration 1 mol/mL. Now, consider that I have 50mL of HCl, and begin adding small quantities of NaOH. I ...
Einstein the troll's user avatar
0 votes
1 answer
232 views

pH Curve in Acid/Base Titrations

So I came across a question on the equation of the pH curve, and I wanted to know how the user here arrived at the matter balance equation. Any help would be appreciated! Here is the question: The ...
Einstein the troll's user avatar
1 vote
1 answer
86 views

Need clarification on pH titrimetry .

I found somewhere in this site that question The reason behind the steep rise in pH in the acid base titration curve when I tried to follow accepted answer, at some point I got stuck. Answer says, ...
Saba Tavdgiridze's user avatar