55. Solving a chemistry problem
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4. 300.0 ml of a 0.250 mol/l K2Cr2O7 solution and 500.0 ml of a K2Cr2O7 solution with a molar concentration of 0.100 mol/l were mixed. What will be the molar concentration of the equivalent of the resulting solution if potassium dichromate is used in reactions as an oxidizing agent in an acidic environment?
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