How many of the following are weak acids?
HNO₂ HClOHNO₃ H₂PO₄⁻

Question

How many of the following are weak acids? HNO₂ HClOHNO₃ H₂PO₄⁻ A) 0 B) 1 C) 3 D) 4 E) 2

Quizplus · Accepted Answer

A weak acid is an acid that partially dissociates in water. The three molecules that have acidic hydrogen atoms (HNOS1U1B12S1U1B0, HClOS1U1B1, and HS1U1B12S1U1B0) can potentially donate a proton (H+) in water, indicating they are weak acids. The molecule with the negative charge (POS1U1B14S1U1B0⁻) is not an acid, as it does not have an acidic hydrogen atom. Therefore, the answer is C) 3.

How Many of the Following Are Weak Acids