Chapter 6, Problem 6.79QP

(a)

Interpretation Introduction

Interpretation: The number of moles of ${\text{C}}_{\text{2}}{\text{H}}_{\text{2}}$ used per hour and grams of calcium carbide used in the lamp for $4$-hour shift is to be calculated.

Concept introduction: Before the development of reliable batteries, miner’s lamps burned acetylene produced by the reaction of calcium and water. Mass of a substance is the product of its molar mass and number of moles.

To determine: The number of moles of ${\text{C}}_{\text{2}}{\text{H}}_{\text{2}}$ used per hour.

(b)

Interpretation Introduction

To determine: The grams of calcium carbide used in the lamp for $4$-hour shift.