136. Solving a chemistry problem
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136. Solving a chemistry problem
A weight of mercury nitrate, equal to 0.3027, was dissolved in 100 cm3 of water. For titration of 25.00 cm3 of this solution in the presence of black eriochrome, 10.50 cm3 of a 0.0200 M complexone III solution was used. Calculate the mass fraction in percent of Hg(NO3)2 in the studied salt sample in (%).
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