Question

Q5. A solution is prepared by adding 2g of a substance A to 18g of water. Calculate the mass percentage of the solute.​

Answer 1

Answer:

So, the mass per cent of Solute = 10 %

HOPE IT HELPS:)

Answer 2

Answer:

Mass of solute A = 2 g

Mass of solvent water = 18 g

Mass percent of solute = ( Mass of solute / Mass of solution ) * 100

= ( 2 / ( 2 + 18 ) ) * 100

= ( 2 / 20 ) * 100

= 0.1 * 100

= 10

The mole fraction formula for a solution with containing one or more solutes is: Mole fraction of each solute = Number of moles of that solute divided by the total number of moles of all solutes and the solvent.

• The sum of mole fraction of all components of a solution is unity.