Explain what is the cod of the waste water sample

Reference no: EM13660503

A 250 mL waste water sample is collected. 100 mL of 0.25 N K2Cr2O7 is added to the water sample as well as to a separate 250 mL sample of distilled water. Both samples are heated to 50°C for 30 minutes. The samples are allowable to cool for 10 minutes and then titrated with 1.500 N iron (II) ammonium sulfate. The waste water sample needs 28.51 mL of titrant, while the blank sample needs 44.37 mL to reach a 1, 10 phenanthroline endpoint. Explain what the COD of the waste water sample is

Reference no: EM13660503

Questions Cloud

Define what mass of helium is in a blimp : Suppose a blimp holds 175,000ft3 of Helium. Suppose the gas is at 23 degree Celsius and 1.0atm, define what mass of Helium is in a blimp

Explain what is the molarity of the malonic acid solution : Assume a solution of malonic acid was standardized by titration with 0.100 M NaOH solution. If 20.76mL of the NaOH solution were needed to neutralize completely 13.15 mL of malonic acid soulution, explain what is the molarity of the malonic acid s..

Compute molarity of hcl : Suppose 50.0 mL of HCl of unknown concentration is titrated to neutrality with 90.0 mL of 6.50 M NaOH Compute molarity of HCl

Titrated to neutrality with naoh compute molarity of hcl : Suppose 50.0 mL of HCl of unknown concentration is titrated to neutrality with 90.0 mL of 6.50 M NaOH Compute molarity of HCl

Explain what is the cod of the waste water sample : The waste water sample needs 28.51 mL of titrant, while the blank sample needs 44.37 mL to reach a 1, 10 phenanthroline endpoint. Explain what the COD of the waste water sample is

Want to make a flow chart on the ph levels of drinking water : Want to make an experiment plan flow chart for chemistry lab on the ph levels of several brands of drinking water, using pH meter. Supply an example

Find the probability : Find the probability

Critical thinking : Critical Thinking

Define what is the bod20 and the ultimate bod : After 20 days, the sample was fixed utilizing the Winkler method and titrated using a 0.0125 M sodium thiosulfate solution to a starch-iodide endpoint after addition of 6.26 mL of the sodium thiosulfate solution. Define what is the BOD20 and the ul..

User Account

All Pages