Which is the strongest acid among these HCOOH or CH3COOH?

Answer 1

No, it is the weakest of all chlorine containing acids! (Note the higher pKa, the weaker the acid)

1. HClO pKa = +7.5
2. HClO2 pKa = +2.0
3. HClO3 pKa = -3.0
4. HCl pKa = -8.0
5. HClO4 pKa = -10.0

Answer 2

CH3COOH is the chemical formula for acetic acid (vinegar). It is also called ethanoic acid. It is considered to be a weak acid as it is only a partially dissociated acid in water.

However, pure, water-free acetic acid, which is called glacial acetic acid absorbs water from the environment and leaves a crystallized particulate in its place, freezing at room temperature. The acid in this form (any high molar concentrate) is dangerously corrosive.

So this is kind of a trick question, particularly because the chemical formula doesn't change between the two forms of the acetic acid.

Answer 3

ch3chclcooh is more acidic than clch2ch2cooh. This is due to the cl group being closer to the cooh group. When the cooh group gets deprotonated, the cl group helps stabilize the molecule due to it's electron withdrawing nature. When cl is closer to the cooh group, it is easier to delocalize electrons of the conjugate base, ch3chclcoo-, therefore stabilizing the conjugate base more than it would if the cl group was at the end.

Answer 4

The brominated version of CBr3COOH is stronger. This is because the bromines are electron withdrawing as they are electronegative. This means electron density is pulled away from the proton making it more ionizable and hence more ready to dissociate and thus a much stronger acid.

Answer 5

Formic acid (HCOOH) is stronger than acetic acid (CH3COOH). This can be seen from comparing the Ka for each acid. HCOOH has a Ka of approximately 1.8x10^-4 compared to the weaker CH3COOH with a Ka of approximately 1.8x10^-5

Answer 6

Ch3sh is the "stronger" acid than ch3cl. It can donate H from but Ch3cl cannot. Ch3sh is not a strong acid but stronger acid than ch3cl.

Answer 7

Cl2CHCOOH is less acidic than CL3CCOOH because of greater inductive effect of Cl atom

Answer 8

The formic acid is stronger; the dissociation constant is higher.

Answer 9

Cl3CCO2H or CCl3COOH is stronger.

Answer 10

Cl2CHCOOH will be the strongest