Question

23g of salt dissolved in 100g of water at 293k.what is the concentration of solution at this temperature

Answer 1

mass of solution =mass of solute + mass of solvent=23+100=123
concentration of solution =mass of solute(salt)/mass of solution(water) multiply by 100
                                              =23/123 multiply by100 
                                              =18.7%

Answer 2

To calculate concentration of any solution standard temperature (293 K),we have to calculate the total mass of both solute and solution.

The total mass of the solution;

=(Mass of the solute+mass of the solvent)

=(Mass of the salt+mass of the water)

=(23+100)g

=123 g

The concentration of the solution:

=(100× mass of the solvent/mass of the whole solution)

=(100×23/123)

=18.69%

=18.7% (answer.)