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Which has greater buffering capacity at Ph 3.5-5 acetic acid or citric acid?
Wiki User
∙ 16y ago
The ideal buffer has a pKa equal to the pH of the solution (see the Related Questions links for more about this).
Citric acid is a triprotic acid (C(OH)(CH2CO2H)2CO2H), and therefore has 3 different pKa's (for each acid group): 3.13, 4.76, 6.40
Acetic acid, CH3COOH is a monoprotic acid, and only has one pKa: 4.75.
Because of the multiple pKa's that span the pH range of interest (3.5-5), citric acid would have a high buffering capacity than acetic acid for the same concentration of buffer solution.
Wiki User
∙ 16y ago
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What is more acidic vinegar or citric acid?
Vinegar is not the same thing as citric acid; vinegar is acetic acid. Acetic acid and citric acid are both weak acids, but citric acid is slightly more acidic.
Does Sprite have acetic acid?
No, sprite does not contain acetic acid, however, it does contain citric acid.
What is Acetic acid also called?
Citric Acid
Is Acetic acid more stronger than citric acid?
no because citric acid is lemon jucie
What acid is present in grapes malic acid tartaric acid acetic acid citric acid?
citric acid
What is more acidic vinegar or citric acid?
Vinegar is not the same thing as citric acid; vinegar is acetic acid. Acetic acid and citric acid are both weak acids, but citric acid is slightly more acidic.
Does Sprite have acetic acid?
No, sprite does not contain acetic acid, however, it does contain citric acid.
Can you give me examples of acids?
citric acetic tartaric
What is Acetic acid also called?
Citric Acid
Is Acetic acid more stronger than citric acid?
no because citric acid is lemon jucie
What acid is present in grapes malic acid tartaric acid acetic acid citric acid?
citric acid
What is a six letter word for mild acid?
citrus ~citric, acetic
Does vinegar have acid inside it?
Sure it does, usually acetic and citric acid.
What tyoe of acid is found in mint sauce?
citric lactic and acetic
What are the 2 organic acids?
acetic acid formic acid citric acid
What acids are produced in the wine making process?
lactic, malolactic, citric, acetic
How do you lower pH in sauce?
Add food grade acid (acetic? citric?)
