Plss
what is the difference between the rate of dissolving and solubility? ?

Solubility

It is a Quantitative term that defines the maximum amount given substance that could be  Dissolved in the solute given It is thermodynamic entity .Solubility measured in mol/kg The concentration of the solute, System's temperature, pressure and the polarity of the solvent and the solute are the factors affecting the solubility  

Dissolution:

The process by which a solute(substance) undergoes interaction with each other and gets dissolved in a given solvent due to an increase in the  stability. It is kinetic entity .Dissolution is measured terms of mol/s Processing factor, factors related to dissolution apparatus, drug product formulation, physiochemical property affects the dissolution

258square inches

Step-by-step explanation:

[AREA OF SHADED PORTION=TOTAL AREA -AREA OF INNER REGION.]

342-84

=258