Question

How much mass of salt and water are needed to prepare 500gm of a 3% solution

Answer 1

Answer:

mass of salt = 15 g

mass of water = 485 g

Explanation:

Given

mass of solution = 500 g

Mass percent of solute = 3%

mass of salt = ??

mass of water =??

Solution

Mass percent of solute = mass of solute / mass of solution X 100

3% = mass of salt / 500 X 100

mass of salt  = 3 X 500 / 100

mass of salt = 15 g

mass of water = mass of solution - mass of salt

mass of water = 500 - 15

mass of water = 485 g