2. 200.0 ml of a solution containing MgCl2, obtained by dissolving 2.0000 g of a technical sample, was passed through a column with a cation exchanger in the H form. To neutralize the acid in each 20.00 ml portion of the eluate, 15.00 ml of 0.1 M KOH solution was spent. Determine the mass fraction of MgCl2 in the sample.

If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.