Question

Determine the mass by mass percentage concentration of a 100g salt solution which contains 20g salt? Ans: (20% )

Answer 1

Give conditions ⇒

Mass of the Salt Solution = 100 g.

Mass of the Slat = 20 g.

∴ Mass Concentration of the Salt = Mass of the Salt/Mass of the Solution

= 20/100

= 0.2

∴ % Mass Concentration of the Salt = 0.2 × 100

= 20 %

Hope it helps.

Answer 2

Given Data :

Mass of solute = 20 g

Mass of solution = 100 g

To find : Mass by mass percentage

Mass by Mass percentage = Mass of solute / Mass of soln. * 100

=> M / M % = 20 / 100 * 100

=> 20 %

This is the required answer.