The weak acid among the options given is D) HCO2H, also known as Formic Acid.

Here's why:

A) HClO4 (Perchloric Acid), B) H2SO4 (Sulfuric Acid), C) HCl (Hydrochloric Acid), and E) HNO3 (Nitric Acid) are all strong acids. This means they completely ionize in water.

On the other hand, D) HCO2H (Formic Acid) is a weak acid, which means it does not completely ionize in water. Instead, it establishes an equilibrium between the ionized and unionized forms.

Question

The weak acid among the options given is D) HCO2H, also known as Formic Acid.

Here's why:

A) HClO4 (Perchloric Acid), B) H2SO4 (Sulfuric Acid), C) HCl (Hydrochloric Acid), and E) HNO3 (Nitric Acid) are all strong acids. This means they completely ionize in water.

On the other hand, D) HCO2H (Formic Acid) is a weak acid, which means it does not completely ionize in water. Instead, it establishes an equilibrium between the ionized and unionized forms.

Knowee AI · Accepted Answer

The weak acid among the options given is D) HCO2H, also known as Formic Acid.

Here's why:

A) HClO4 (Perchloric Acid), B) H2SO4 (Sulfuric Acid), C) HCl (Hydrochloric Acid), and E) HNO3 (Nitric Acid) are all strong acids. This means they completely ionize in water.

On the other hand, D) HCO2H (Formic Acid) is a weak acid, which means it does not completely ionize in water. Instead, it establishes an equilibrium between the ionized and unionized forms.

Which of the following is a weak acid?A) HClO4B) H2SO4C) HClD) HCO2HE) HNO3

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