   Chapter 21, Problem 39PS

Chapter
Section
Textbook Problem

Calcium oxide, CaO, is used to remove SO2 from power plant exhaust. These two compounds react to give solid CaSO3. What mass of SO2 can be removed using 1.2 × 103 kg of CaO?

Interpretation Introduction

Interpretation:

To predict the mass of SO2 that can be removed using 1.2×103 kg of CaO.

Concept introduction:

Calcium oxide can be used to remove sulfur dioxide from power plant exhaust. The formula for calcium oxide is CaO and the formula for sulfur dioxide is SO2. The reaction of both these compounds produces a solid CaSO3. The chemical equation is:

CaO(s)+SO2(g)CaSO3(s)

Explanation

The mass of SO2 that can be removed using 1.2×103 kg of CaO is calculated below.

Given,

The chemical equation is:

CaO(s)+SO2(g)CaSO3(s)

The molar mass of CaO is: 56 g.

The molar mass of SO2 is: 64 g.

56 g of CaO can remove 64 g of SO2.

1 g of CaO can remove 6456g of SO2

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