Answer to Question #244475 in General Chemistry for RGG

Question

How much salt and how much water must be mixed to make 250g brine solution that is 50% salt by mass?

Answer 1

Concentration = (mass of solute/mass of solution) ×100

50=(mass of solute/250gm)×100

mass of solute = 250×50/100

mass of solute = 125 gm

mass of solution = mass of solute +

mass of solvent

250gm=125gm+mass of solvent

mass of solvent=250gm-125gm

mass of solvent=125gm.

mass of solute=125gm.