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CWEA Grade I Laboratory Analyst |2024 UPDATE |REAL EXAM QUESTIONS AND VERIFIED ANSWERS/ACCURATE SOLUTIONS |GET IT 100% CORRECT!! ALREADY GRADED A+ $29.99
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CWEA Grade I Laboratory Analyst |2024 UPDATE |REAL EXAM QUESTIONS AND VERIFIED ANSWERS/ACCURATE SOLUTIONS |GET IT 100% CORRECT!! ALREADY GRADED A+

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CWEA Grade I Laboratory Analyst |2024 UPDATE |REAL EXAM QUESTIONS AND VERIFIED ANSWERS/ACCURATE SOLUTIONS |GET IT 100% CORRECT!! ALREADY GRADED A+

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  • December 6, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • CWEA Grade I Laboratory Analyst
  • CWEA Grade I Laboratory Analyst

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12/6/24, 2:44 PM CWEA Grade I Laboratory Analyst |2024 UPDATE |REAL EXAM QUESTIONS AND VERIFIED ANSWERS/ACCURATE SOLU…




CWEA Grade I Laboratory Analyst |2024
UPDATE |REAL EXAM QUESTIONS AND
VERIFIED ANSWERS/ACCURATE SOLUTIONS
|GET IT 100% CORRECT!! ALREADY GRADED A+


Practice questions for this set


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Chloride in human diet and softeners flushed into sanitary sewer system



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What increases concentration of
1 Primary use of chlorine
chloride in wastewater




3 Total coliform group 4 pH meter calibration



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Terms in this set (169)

- Major anion found in many natural waters
Chloride
- Can impart salty taste in H2O


https://quizlet.com/980898527/cwea-grade-i-laboratory-analyst-2024-update-real-exam-questions-and-verified-answersaccurate-solutions-get-it-… 1/11

, 12/6/24, 2:44 PM CWEA Grade I Laboratory Analyst |2024 UPDATE |REAL EXAM QUESTIONS AND VERIFIED ANSWERS/ACCURATE SOLU…

What increases Chloride in human diet and softeners flushed into
concentration of chloride sanitary sewer system
in wastewater

2 most prevalent argentometric and mercuric nitrate
methods of measuring
chloride

Titration of sample with standard solution of silver
nitrate (AgNO3)
Argentometric
- Indicator: Chromate ions (CrO4)
- End point: reddish silver chromate

Titration with standard mercuric nitrate solution
-pH must be adjusted between 2.3 and 2.8
Mercuric Nitrate - Indicator: Diphenyl carbazone
- End point: Change from blue to purple in
presence of mercury

Interference of Mercuric Sulfide, bromide, orthophosphate (over 30 ppm),
Nitrate Method and iodide

Why does color change Presence of decaying vegetable matter, metal ions
in water (ie. iron) or industrial and domestic pollution

How is color measured Measured using visual comparison method

Sample compared to standards using matched
Visual comparison nessler tubes
method - Standards prepared with solution containing
cholorplatinate and cobaltous chloride

Standard units for color One unit= color resulting from 1 mg of platinum/L

2 color reporting True and Apparent

Color from dissolved substances, determine using
True color
sample treated to remove turbidity

Apparent Color Includes dissolved and suspended solids

Conductivity H2Os capability to pass electrical flow

Conductivity of pure 0
water

Units of conductivity micromhos/cm

https://quizlet.com/980898527/cwea-grade-i-laboratory-analyst-2024-update-real-exam-questions-and-verified-answersaccurate-solutions-get-it-… 2/11

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