Chapter 4, Problem 4.72QP

Interpretation Introduction

Interpretation:

The net ionic equation for the reaction has to be written and the concentration of sulphate in the original sample of water has to be calculated.

Concept introduction

Ionic equation:

• In the ionic reactions, all the species present in reaction are written with respective charges.

Net ionic equation:

• The removal of spectator ions from ionic equation gives the net ionic equation.

Balancing the net ionic equation,

• Balanced molecular equation has to be written.
• Ionic equation has to be written, insoluble products has to be written as such.
• Identify and cancel the spectator ions.
• Check the charges and number of atoms and then balance.

$\text{Molarity = }\frac{\text{No}\text{. of moles of solute}}{\text{Volume of solution in L}}$