23. Решение задачки по химии №131

5. How many grams of Trilon B should be taken to prepare 200 ml of solution, which is used to determine magnesium in a mineral containing about 15% of it. Take into account that 1 g of the sample is dissolved and the solution, after separating the interfering components, is diluted with water in a 500 ml volumetric flask.

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