Final answer:
The correct chemical formula for phosphoric acid is H₃PO₄. Therefore, option 1) H₃PO₄ is the correct choice.
The correct option is 1.
Step-by-step explanation:
Phosphoric acid is a triprotic acid, meaning it can donate three protons (H⁺ ions) per molecule in acidic solutions. The chemical formula for phosphoric acid is H₃PO₄. Let's break down the formula:
- "H" represents hydrogen.
- "PO₄" represents a phosphate group, which consists of one phosphorus (P) atom and four oxygen (O) atoms.
So, H₃PO₄ indicates that there are three hydrogen atoms bonded to one phosphate group. Each hydrogen atom can dissociate as a proton in an acidic solution, and phosphoric acid can undergo up to three dissociations to release three protons.
The correct option is 1.