Question

Расчитайте массу соли и воды необходимых для приготовления 15% раствора соли массой 300г

Answer 1

За место 35 составь 15%

Answer 2

Calculation of Mass of Salt and Water for a 15% Salt Solution

To calculate the mass of salt and water needed to prepare a 15% salt solution with a total mass of 300g, we can use the following steps:

1. Determine the mass of salt in the solution: - The concentration of the salt solution is given as 15%. - This means that 15% of the total mass of the solution is salt. - To calculate the mass of salt, we can multiply the total mass of the solution (300g) by the concentration (15% or 0.15).

Mass of salt = 300g * 0.15 = 45g.

2. Determine the mass of water in the solution: - Since the total mass of the solution is 300g and the mass of salt is 45g, the remaining mass must be water. - To calculate the mass of water, we can subtract the mass of salt from the total mass of the solution.

Mass of water = Total mass of solution - Mass of salt = 300g - 45g = 255g.

Therefore, to prepare a 15% salt solution with a total mass of 300g, you would need 45g of salt and 255g of water.

Please note that the calculations provided are based on the given information and assumptions.