Potassium dichromate is a strong oxidizing agent used in the analysis of chemical oxygen demand, also...

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Potassium dichromate is a strong oxidizing agent used in the analysis of chemical oxygen demand, also known as COD, which is a method used by environmental engineers to estimate the total organic matter in wastewater (you probably used this as a Hach kit in 304 lab). This process involves a redox reaction between organic matter and dichromate, Cr2O72-. If we assume that all COD is composed of glucose, C6H12O6, then the balanced redox reaction is: C6H12O6 +4 K2Cr2O7² + 32 H+ → 6 CO2 + 2 K+ + 8 Cr³+ + 22 H₂O Based on the balanced reaction, how many grams of potassium dichromate, K2Cr2O7, are consumed if the COD measured of a 1 mL sample is 100 mg/L? Assume that the 100 mg/L of COD is all due to glucose. The formula mass of potassium dichromate is 294.2 g/mol. Potassium dichromate is a strong oxidizing agent used in the analysis of chemical oxygen demand, also known as COD, which is a method used by environmental engineers to estimate the total organic matter in wastewater (you probably used this as a Hach kit in 304 lab). This process involves a redox reaction between organic matter and dichromate, Cr2O72-. If we assume that all COD is composed of glucose, C6H12O6, then the balanced redox reaction is: C6H12O6 +4 K2Cr2O7² + 32 H+ → 6 CO2 + 2 K+ + 8 Cr³+ + 22 H₂O Based on the balanced reaction, how many grams of potassium dichromate, K2Cr2O7, are consumed if the COD measured of a 1 mL sample is 100 mg/L? Assume that the 100 mg/L of COD is all due to glucose. The formula mass of potassium dichromate is 294.2 g/mol.

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To determine the amount of potassium dichromate consumed in the reaction we first need to find the m... View the full answer