Calculating Biological oxygen demand without volumes

[filie89]

Hi

I was given an assignment and there is one question that is killing me. it goes as follows:

Consider the following data from a BOD test:
Days. DO(mg/l)
0... 9
1... 9
2... 9
3... 8
4... 7
5... 6
10... 6
15... 4
20... 3
25... 3

The very first question is what is BOD5.

I cannot seem to find anything relating to how to calculate the answer without a sample volume (assuming volume of container is 300ml)

is there anyone out there who can lead me to the correct direction please??

 

[IRstuff]

Student homework postings are not allowed.

TTFN
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[bimr]

http://r.search.yahoo.com/_ylt=A0LE...lYwNzcg--/RV=2/RE=1463004236/RO=10/RU=http://

http://www.dep.state.pa.us/dep/depu...%205.doc/RK=0/RS=Pav.Rbzt6f_2NZmUeNYfF0Ak.ic-