Question

Сколько граммов уксусной кислоты и воды необходимо взять для приготовления 200г 60% раствора

Answer 1

Общая масса раствора - 200 г
Массовая доля кислоты - 60%, масса кислоты - x г
Составим пропорцию:
200 г -100 %
x  - 60%
x = 200 * 60 / 100 = 120 г -масса  кислоты,
тогда масса воды в растворе: 200 - 120 = 80 г

Answer 2

Calculating the Amount of Acetic Acid and Water for a 200g 60% Solution

To calculate the amount of acetic acid and water needed to prepare a 200g 60% solution, we can use the following formula:

Amount of solute = (desired percentage / 100) * total solution weight

In this case, the solute is acetic acid, and the total solution weight is 200g.

Using the given information, we can calculate the amounts of acetic acid and water needed for the solution.

Calculations

1. Amount of Acetic Acid: - Desired Percentage: 60% - Total Solution Weight: 200g - Calculation: (60 / 100) * 200g = 120g of acetic acid.

2. Amount of Water: - Calculation: Total solution weight - Amount of acetic acid = 200g - 120g = 80g of water.

Therefore, to prepare a 200g 60% solution, you would need 120g of acetic acid and 80g of water.

I hope this helps! If you have any further questions, feel free to ask.