Science

posted by .

For a BOD5 Test:
1) why water samples needed dilution
2) How to check the test accuracy
3) Under what conditions, the water sample needs"seed"?
anyone can help, please.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    A technician needs to determine the concentration of lead ions in a sample of water a) Suggest a test chemical that can be added to the water sample to preciitate the lead ions. Show a chemical euation for the formation of the precipitate …
  2. chemisry

    A technician needs to determine the concentration of lead ions in a sample of water a) Suggest a test chemical that can be added to the water sample to preciitate the lead ions. Show a chemical euation for the formation of the precipitate …
  3. Statistics

    Is the water on your airline flight safe to drink?
  4. MATH STATS

    For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with …
  5. science review

    since tomorrow is my test. Please check: seed coat- skin covering the seed to protect the inner parts Hilum- ?
  6. Statistics Help !!

    Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students
  7. Statistics

    Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students
  8. Statistics Help !!!!

    Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students
  9. science

    For BOD5 test 1) Why water samples needed dilution?
  10. statistics

    A credit card company estimates that the average credit card balance of Americans is $3,210. A statistics student wants to know whether this is true for citizens of her home town. Which hypothesis test would be most appropriate for …

More Similar Questions