3. After the BOD test, you obtained the following DO data
in the lab. The results of which sample volume(s) could be
used for further analysis?
4. Use only those valid data sets you identified in
Question 3, calculate BOD5 using the formula
BOD5 (mg/L) = (D1 - D2)
/ P where P = decimal volumetric fraction of sample to total
combined volume of 300 mL. Calculate the average and enter
the value.
- 3 After The Bod Test You Obtained The Following Do Data In The Lab The Results Of Which Sample Volume S Could Be Us 1 (68.13 KiB) Viewed 59 times
Question 3 After the BOD test, you obtained the following DO data in the lab. The results of which sample volume(s) could be used for further analysis? 5-Day DO, D₂ (mg/L), Sample Volume (mL) Initial DO, D, (mg/L) 5-Day DO, D₂ (mg/L), Replicate 2 Replicate 1 1 9.0 8.2 8.3 2 9.1 7.2 7.3 4 9.2 4.2 5.1 6 9.0 2.2 1.8 10 8.9 0.9 0.5 0/0.5 pts Question 4 Use only those valid data sets you identified in Question 3, calculate BOD5 using the formula BOD, (mg/L) = (D₁ - D₂) / P where P = decimal volumetric fraction of sample to total combined volume of 300 mL. Calculate the average and enter the value. 5-Day DO, D₂ (mg/L), Sample Volume (mL) Initial DO, D₁ (mg/L) 5-Day DO, D₂ (mg/L), Replicate 2 5-Day DO, D2₂ (mg/L), Replicate 3 Replicate 1 1 9.0 8.2 8.3 7.9 2 9.1 7.2 7.3 7.2 4 9.2 4.2 5.1 4.6 9.0 2.2 1.8 1.9 8.9 0.9 0.5 0.4 6 and 10 mL Incorrect... 1, 2, and 4 mL O All sample volumes O2, 4, and 6 mL Ⓒ 4 and 6 mL 6 10 0/0.5 pts 5-Day DO, D₂ (mg/L), Replicate 3 7.9 7.2 4.6 1.9 0.4