Chemistry, 13.07.2019 19:40 helpmewithmath70

A25-ml sample of river water was titrated with 0.0010 m k2cr2o7 and required 8.3 ml to reach the end point. what is the chemical oxygen demand, in milligrams of o2 per liter, of the sample?

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A25-ml sample of river water was titrated with 0.0010 m k2cr2o7 and required 8.3 ml to reach the end...