Chapter 4, Problem 4.105QP

Interpretation Introduction

Interpretation:

Equations for the given preparation methods of ${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}$ should be written and each steps of the reaction are should be classified as precipitation, acid-base, or redox reaction.

Concept introduction:

Redox reaction:

• The oxidation number of a molecule is varied by involving in reaction is called redox reaction.  The oxidation and reduction of chemical compounds takes place while they are involving in the reaction is called redox reaction.

Acid -Base reaction:

• The reaction between acid and base to produce a salt is called acid-base reaction.

Precipitation reaction:

• If precipitate is formed, when the two solutions mixed together is called precipitation reaction.

Balanced equation:

• Balanced equation is equation for the chemical reaction, which is written by the number of atoms for each element and total charges of ions are equal in the reaction for in both reactants and the products sides.
• To write the balanced equation for the preparation reactions of ${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}$ by electric furnace method