The Chemical Reaction Occurring During the Discharge of a Lead

question 150

Multiple Choice

The chemical reaction occurring during the discharge of a lead storage battery can be represented by the equation:
Pb(s) + PbO₂(s) + 2 H₂SO₄(aq) → 2 PbSO₄(s) + 2 H₂O(l)
Which is the limiting reagent and the amount of PbSO₄ produced if 39.8 g of Pb,57.9 g of PbO_2, and 352 mL of 0.375 M solution of H₂SO₄ is used?

• A)limiting reagent PbO₂,146 g PbSO₄
• B)limiting reagent Pb,58.2 g PbSO₄
• C)limiting reagent Pb,116 g PbSO₄
• D)limiting reagent H₂SO₄,80.0 g PbSO₄
• E)limiting reagent H₂SO₄,40.0 g PbSO₄

---

Definitions:

Vestibule

An entrance or enclosed anteroom between the outer door and the interior parts of a house or building, or the central cavity of the labyrinth of the ear.

Crista Ampullaris

A sensory organ located within the semicircular canals of the inner ear, detecting head movements.

Otoliths

Small calcium carbonate crystals in the inner ear that, along with hair cells, help to detect gravity and linear accelerations, contributing to balance and spatial orientation.

Macula

A specialized region in the center of the retina responsible for sharp, detailed central vision.