Question

РЕШИТЕ!!!!!к 300г 15% раствора добавили 200г 20% раствора.найти массовую долю полученного раствора.

Answer 1

решение смотрите на фото =)

Answer 2

Calculation of Mass Fraction of the Resulting Solution

To find the mass fraction of the resulting solution, we need to calculate the total mass of the solution and the mass of the solute.

Given: - 300g of a 15% solution - 200g of a 20% solution

Let's calculate the mass of the resulting solution and the mass of the solute.

1. Mass of the resulting solution: - Mass of the 15% solution = 300g - Mass of the 20% solution = 200g - Total mass of the resulting solution = Mass of the 15% solution + Mass of the 20% solution

Total mass of the resulting solution = 300g + 200g = 500g

2. Mass of the solute: - Mass of the solute in the 15% solution = 15% of 300g - Mass of the solute in the 20% solution = 20% of 200g - Total mass of the solute = Mass of the solute in the 15% solution + Mass of the solute in the 20% solution

Total mass of the solute = (15/100) * 300g + (20/100) * 200g

Now, let's calculate the mass fraction of the resulting solution.

3. Mass fraction of the resulting solution: - Mass fraction of the resulting solution = Mass of the solute / Total mass of the resulting solution

Mass fraction of the resulting solution = Total mass of the solute / Total mass of the resulting solution

To find the exact values, we need to calculate the mass of the solute and the total mass of the resulting solution using the given percentages and masses.

Let's calculate the values.

- Mass of the solute in the 15% solution = (15/100) * 300g - Mass of the solute in the 20% solution = (20/100) * 200g - Total mass of the solute = (15/100) * 300g + (20/100) * 200g - Total mass of the resulting solution = 300g + 200g

Now, we can calculate the mass fraction of the resulting solution.

- Mass fraction of the resulting solution = Total mass of the solute / Total mass of the resulting solution

Please give me a moment to calculate the values.