Chapter 21, Problem 21.85QP

Interpretation Introduction

Interpretation:

the volume of ${\text{SO}}_{\text{2}}$ emitted from an electric power station should be determined in standard temperature and pressure

Concept introduction:

• Balanced chemical equation of a reaction is written according to law of conservation of mass.
• Equation for Number of moles of a substance, from its given mass is,

$\text{Number of moles}\text{=}\frac{\text{Given}\text{mass}}{\text{Molecular}\text{mass}}$

• Standard temperature and pressure (STP) it is used when performing calculations on gases. Standard temperature is 273 K and standard pressure is taken as 1atm pressure.
• Ideal gas equation is $\text{PV=nRT}$

Where P, V, n, R and T are the pressure, volume, amount of substance, universal gas

Constant and temperature in absolute scale respectively.

To determine: the balanced chemical equations for the given chemical reaction.