Chemistry Homework Solutions
#164977
A 40.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 and required 8.3 mL to reach the end-point.
Could you please explain what formula and step are involved and please provide (example) problem if possible:
A 40.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 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?
Titration of river water to find chemical oxygen demand.
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