Question

СРОЧНО, РЕБЯТ!!!!! ДАЮ 10 БАЛОВ!!! Рассчитайте масы воды и соли, необходимые для приготовления 400г раствора с массовой долей соли 12%

Answer 1

Ответ:

А какой именно соли? Скажи

Answer 2

Calculating Mass of Water and Salt for a 12% Solution

To calculate the masses of water and salt needed to prepare a 400g solution with a 12% mass fraction of salt, we can use the following formula:

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

Calculations

1. Mass of Salt: - Mass fraction of salt = 12% - Total mass of solution = 400g - Using the formula: - Mass of salt = (12 / 100) * 400g - Mass of salt = 0.12 * 400g - Mass of salt = 48g

2. Mass of Water: - Total mass of solution = 400g - Mass of salt = 48g - Using the formula: - Mass of water = Total mass of solution - Mass of salt - Mass of water = 400g - 48g - Mass of water = 352g

Therefore, to prepare a 400g solution with a 12% mass fraction of salt, you would need 48g of salt and 352g of water.

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