КО194 To a solution of (NH4) 2SO4 was added to 20.00 cm

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194. To a solution of (NH4) 2SO4 was added to 20.00 cm3 NaOH, T (NaOH) = 0,008540. Then removed by boiling NH3. On titration of excess NaOH matter remaining 7.5 cm3 HCl (T (HCl) = 0,003720). Calculate the content of (NH4) 2SO4 solution.


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