Question

Сколько воды нужно добавить к стакану 9%-ного уксуса,чтобы получить уксус крепостью 3%?

Answer 1

Решение на фотографии

Answer 2

Calculating the Dilution of Vinegar:

To calculate the amount of water needed to dilute 9% vinegar to 3%, we can use the formula:

C1V1 = C2V2

Where: - C1 = concentration of the initial solution - V1 = volume of the initial solution - C2 = concentration of the final solution - V2 = volume of the final solution

We want to find V2, the volume of water to be added.

Given: - C1 = 9% - C2 = 3%

Using the formula, we can calculate V2 as follows:

C1V1 = C2V2 9% * V1 = 3% * (V1 + V2)

Let's solve for V2.

Calculation:

9% * V1 = 3% * (V1 + V2) 0.09V1 = 0.03(V1 + V2) 0.09V1 = 0.03V1 + 0.03V2 0.06V1 = 0.03V2 V2 = (0.06V1) / 0.03 V2 = 2V1

This means that to dilute 9% vinegar to 3%, you need to add an equal amount of water to the original volume of vinegar.

Conclusion:

To dilute a given volume of 9% vinegar to 3%, you would need to add an equal volume of water to the original volume of vinegar.