Question

30 gm. of urea are dissolved in 320 gm. of water. Calculate
the mass by mass percent of the solution.​

Answer 1

Mas of common salt (solute)=30 g

Mass of water (soluted) =320 g

mass of solution=320+40

=360 g

concentration of solution=

massofsolution

M

mass

ofsolute

×100

360/30×100=1200%

Hence, the concentration of the solution is 1200%