Question

Смешали некоторое количество14-процентного раствора некотороговещества со вдвое большим количеством8-процентного раствора этоговещества.Сколько процентов составляет концентрация получившегося раствора?

Answer 1

х-14%раствора

2х-8% раствора

х+2х=14+2*8

3х=30

х=10% раствор получится 

Answer 2

Calculation of the Concentration of the Mixture

To calculate the concentration of the resulting solution, we need to determine the amount of the substance in each of the initial solutions and then calculate the total amount of the substance in the final mixture.

Let's assume that we mixed a certain amount of a 14% solution of the substance with twice the amount of an 8% solution of the same substance.

To calculate the concentration of the resulting solution, we can use the following formula:

Concentration of resulting solution = (Total amount of substance in the mixture / Total volume of the mixture) * 100

Calculation Steps:

1. Let's assume we have x amount of the 14% solution. 2. Since the 8% solution is twice the amount of the 14% solution, we have 2x amount of the 8% solution. 3. The total amount of the substance in the 14% solution is 0.14x. 4. The total amount of the substance in the 8% solution is 0.08 * 2x = 0.16x. 5. The total amount of the substance in the final mixture is 0.14x + 0.16x = 0.3x. 6. The total volume of the mixture is x + 2x = 3x. 7. Therefore, the concentration of the resulting solution is (0.3x / 3x) * 100 = 10%.

Answer:

The concentration of the resulting solution is 10%.

Please note that the calculations provided above are based on the assumption that the substance is evenly distributed in the solutions and that there are no chemical reactions or changes in volume during the mixing process.