Chapter 3, Problem 1SEPP

Interpretation Introduction

Interpretation:

The correct balanced equation for preparing phosphorous fertilizer is to be selected.

Concept introduction:

The basic reaction for preparing phosphorous fertilizer is done by the reaction of insoluble phosphate rocks with sulfuric acid, which produces calcium di-hydrogen phosphate.

${\text{PO}}_{\text{4}}{}^{\text{3}-}+{\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\to {\text{H}}_{\text{2}}{\text{PO}}_{\text{4}}{}^{-}+{\text{SO}}_{\text{4}}{}^{\text{2}-}$