Chapter 21, Problem 73GQ

Interpretation Introduction

Interpretation:

To calculate the mass of ${\text{SiO}}_{\text{2}}$ used when $70\%$ of ${\text{SiO}}_{\text{2}}$ is converted into $\text{SiC}$.

Concept introduction:

Silicon dioxide reacts with carbon to produce $\text{SiC}$ and carbon monoxide. The reaction is an redox reaction. The balanced chemical equation of silicon dioxide with water is written as,

    ${\text{SiO}}_{\text{2}}\left(\text{s}\right)+\text{3C}\left(\text{s}\right)\to \text{SiC}\left(\text{s}\right)+2\text{CO}\left(\text{g}\right)$