Question

К 60г 30% раствора добавить 30г вещества найти концентрацию полученного раствора

Answer 1

х - г серной кислоты в растворе... у - г раствора было первоначально;... х/у -% содержание вещества в растворе;... х/у=0,3; х=0,3у... х/(у+60)=0,1; решаем систему... 0,3у=0,1(у+60)... 0,2у=6... у=30 - г раствора было первоначально;

Answer 2

Calculation of Concentration

To find the concentration of the resulting solution after adding 30g of a substance to a 60g, 30% solution, we need to calculate the amount of the substance in the solution and then determine the concentration.

Let's break down the calculation step by step:

1. Calculate the amount of the substance in the 60g, 30% solution: - The solution is 30% concentration, which means that 30% of the solution is the substance. - So, the amount of the substance in the solution is 30% of 60g, which is 0.3 * 60g = 18g.

2. Add the 30g of the substance to the solution: - After adding the 30g of the substance, the total amount of the substance in the solution is 18g + 30g = 48g.

3. Calculate the concentration of the resulting solution: - The concentration is the amount of the substance divided by the total solution volume. - Since we don't have information about the volume of the solution, we cannot determine the exact concentration without this information.

Please provide the volume of the solution so that we can calculate the concentration accurately.

If you have any further questions, feel free to ask!