Question

A solution contains 40 g of
common salt in 320 g of water.
Calculate the concentration in terms of
mass by mass percentage of the
solution.​

Answer 1

Answer:

11.1%

mass of solute/mass of solution×100

40/360×100=11.1%

Answer 2

Question  :-

A solution contains 40 g of  common salt in 320 g of water.  Calculate the concentration in terms of  mass by mass percentage of the  solution.​

Answer :-

Mass of solute (salt) = 40 g

Mass of solvent (water) = 320 g

We know,

Mass of solution = Mass of solute + Mass of solvent

                           = 40 g + 320 g

                           = 360 g

Mass percentage of solution

 = Mass of solute   x 100

    Mass of solution

= 40  x 100 = 11.1 %

  360