Question

Вычислите массу воды и соли , которые необходимо взять для приготовления 600 г раствора с массовой долей соли 15%

Answer 1

Масса соли= 600*15%/100%=90 г
масса воды=600-90=510 г

Answer 2

Calculating the Mass of Water and Salt for a 600g Solution with 15% Salt

To calculate the mass of water and salt needed to prepare a 600g solution with a 15% mass fraction of salt, we can use the following formula:

Mass of solute = (mass fraction of solute / 100) * total mass of solution

Using this formula, we can calculate the mass of salt and water required.

1. Calculating the Mass of Salt: - Mass fraction of salt = 15% - Total mass of solution = 600g

Mass of salt = (15 / 100) * 600g Mass of salt = 0.15 * 600g Mass of salt = 90g 2. Calculating the Mass of Water: - Total mass of solution = 600g - Mass of salt = 90g

Mass of water = Total mass of solution - Mass of salt Mass of water = 600g - 90g Mass of water = 510g

Therefore, to prepare a 600g solution with a 15% mass fraction of salt, you would need to take 90g of salt and 510g of water.