InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    Example2.1 A solution contains 40 g ofcommon salt in 320 g of water.Calculate the concentration in terms ofmass by mass percentage of thesolution. | 
                            
| 
                                   
Answer»  Mass of solute - NaCl =40gmMass of solvent - water =320gmMass of solution =(40+320) gm=360gmConcentration in terms of Mass by mass percentage =mass of solute /mass of solution *100=40/360*100%=11.11% Mass of solute(salt)=40gmass of solvent(water)=320gWe know,Mass of solution =mass of solute+mass of solvent =40g+320g =360gmass percentage of solution =mass of solute÷mass of solution ×100 =40÷360×100 =11.1%  | 
                            |