Question

К 6 л. 80%-го раствора кислоты добавили 4л воды.Опредилите процентное содержание кислоты в полученном растворе

Answer 1

                             I раствор(л)                вода(л)             II раствор(л)            
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масса
раствора                  6                                4                            6+4=10
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 % кислоты            80 %                             -                                 Х%    __________________________________________________________
масса кислоты     
в растворе          0,8*6 = 4,8                     -                      0,01Х*10 = 0,1Х      
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 0,1Х = 4,8 
  Х = 48

Ответ:  48 %. 

Answer 2

Calculation of the Percentage of Acid in the Solution

To calculate the percentage of acid in the solution, we need to consider the initial concentration of the acid and the volume of water added.

Given that 6 liters of an 80% acid solution were mixed with 4 liters of water, we can calculate the percentage of acid in the resulting solution.

Let's assume the initial concentration of the acid is represented by C1 and the final concentration of the acid in the resulting solution is represented by C2.

The equation we can use to calculate the final concentration of the acid is:

C1 * V1 = C2 * V2

Where: - C1 is the initial concentration of the acid (80%) - V1 is the initial volume of the acid solution (6 liters) - C2 is the final concentration of the acid in the resulting solution (unknown) - V2 is the final volume of the resulting solution (6 liters + 4 liters = 10 liters)

By substituting the given values into the equation, we can solve for C2:

80% * 6 liters = C2 * 10 liters

Simplifying the equation:

480 = 10C2

Dividing both sides of the equation by 10:

C2 = 48%

Therefore, the percentage of acid in the resulting solution is 48%.

Answer

The percentage of acid in the resulting solution is 48%.