Question

Определите количество воды и вещества для приготовления дезинфицирующего раствора из расчета на 1 л 5% -ного расствора хлорамина ? решите пожалуйста

Answer 1

1 л раствора  -  100%
  х л вещ-ва   -     5%               х=(1*5):100=0,05 (л)

Количество хлорамина = 0,05 л, а воды = 1-0,05=0,95 л .

Answer 2

Calculation of the Amount of Water and Substance for a 5% Chloramine Solution

To determine the amount of water and substance needed to prepare a 5% chloramine solution, we can use the following formula:

Amount of Substance (g) = Volume of Solution (L) × Concentration of Substance (%) × 10

In this case, we want to calculate the amount of water and substance needed for a 1 L solution of a 5% chloramine solution.

Let's calculate the amount of substance first:

Amount of Substance (g) = 1 L × 5% × 10 = 0.5 g

Therefore, you would need 0.5 grams of chloramine for a 1 L solution of a 5% chloramine solution.

To calculate the amount of water, we subtract the amount of substance from the total volume of the solution:

Amount of Water (L) = Volume of Solution (L) - Amount of Substance (L)

Amount of Water (L) = 1 L - 0.5 L = 0.5 L

Therefore, you would need 0.5 liters of water for a 1 L solution of a 5% chloramine solution.

Please note that the above calculation assumes that the concentration of chloramine is given as a weight/volume percentage (% w/v). If the concentration is given in a different form, such as a weight/weight percentage (% w/w) or a volume/volume percentage (% v/v), the calculation may differ.

I hope this helps! Let me know if you have any further questions.