126. Solving a chemistry problem
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126. Solving a chemistry problem
4. A portion of H2C2O4*2H2O weighing 0.75 g was dissolved and mixed with 25 cm3 of KOH solution, and then the excess of the latter was titrated with 4.02 cm3 of 0.125 M HCl solution. Calculate the molar concentration of the KOH solution.
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