Phosphorus Pentachloride Reacts with Water to Form Hydrochloric Acid and Phosphoric

question 92

Multiple Choice

Phosphorus pentachloride reacts with water to form hydrochloric acid and phosphoric acid. How many total moles of acid are formed when starting with 4.5 g of PCl₅ and excess H₂O?
PCl₅ + 4H₂O $\rarr$ 5HCl + H₃PO₄

• A) 0.022 moles
• B) 0.12 moles
• C) 0.13 moles
• D) 27 moles
• E) 23 moles

---

Definitions:

Explanatory Notes

Detailed descriptions or clarifications provided alongside drawings, diagrams, or documents to aid in understanding complex or ambiguous information.

Part

A piece or component of a larger object or system.

Undercut

Undercut is a condition in manufacturing where a part of the geometry is recessed below or behind an adjacent surface, often challenging to machine.

Symbol

A symbol is a graphical representation or sign that stands for an object, concept, or operation in technical drawings, schematics, or mathematical equations, facilitating communication.