Question 2004 of 234 · California Wastewater Operator Exam
If the pH of a sample drops from 7 to 5, the hydrogen ion concentration has
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 2004
- D: increased by 100 times
Explanation
The pH scale is logarithmic, so two units lower means ten times ten, or 100 times, more hydrogen ions.
More questions: Sampling, Laboratory Analysis and Wastewater Characteristics
- 2005The five-day BOD test measures
- 2006At what temperature is a standard BOD test incubated?
- 2007How should a BOD sample be preserved if it cannot be analyzed immediately?
- 2008Total suspended solids (TSS) are determined by
- 2009Volatile solids are the portion of solids that
- 2010Settleable solids are measured with