Question

15 grams of salt is added to 15 grams of water. The water is stirred until the salt is completly dissolved. What will be the mass of the salt water

Answer 1

Sol:- Mass of solute = 15g
Mass of solvent =15g
Mass of solution = Mass of solute + Mass
of solvent.
= 15g + 15g
= 30g
Mass of mass% =
$\frac{mass \: of \: solute}{mass \: of \: solution} \times 100$
$= \frac{15}{30} \times 100 \\ = 50\%$