Question

Сколько воды нужно добавить к 600 г жидкости,которая содержит 40% соли, чтобы получить 12-ый раствор этой соли?В граммах

Answer 1

Пишем условие
40% * 600 г = 240 г соли
240 : 12% = 2000 г раствора надо получить
2000 - 600 = 1400 г - надо добавить - ОТВЕТ

Answer 2

Calculating the Amount of Water Needed to Create a 12% Solution from a 40% Salt Solution

To calculate the amount of water needed to add to 600g of a 40% salt solution to obtain a 12% salt solution, we can use the following formula:

Initial amount of salt / Final amount of solution = Final concentration of salt

Let's calculate the amount of water needed step by step.

1. Calculate the Initial Amount of Salt: - The initial amount of salt in the 40% solution can be calculated as: ``` Initial amount of salt = 40% of 600g = 0.40 * 600g ```

2. Calculate the Final Amount of Solution: - The final amount of solution is the sum of the initial 600g solution and the water to be added.

3. Calculate the Amount of Water Needed: - The amount of water needed can be calculated as: ``` Amount of water = Final amount of solution - Initial amount of salt ```

Calculation

1. Initial Amount of Salt: - Initial amount of salt = 0.40 * 600g = 240g

2. Final Amount of Solution: - Final amount of solution = 600g (initial solution) + Amount of water

3. Amount of Water Needed: - Amount of water = Final amount of solution - 240g

Conclusion

To obtain a 12% salt solution from a 600g 40% salt solution, you would need to add a specific amount of water, which can be calculated using the steps outlined above.