Engineering > Experiment > CWE-301_WATER_QUALITY_AND_ENVIRONMENT_pH_Meters. (All)

CWE-301_WATER_QUALITY_AND_ENVIRONMENT_pH_Meters.

Document Content and Description Below

EXPERIMENT--3 DETERMINATION OF pH OF A SAMPLE OF WATER The term “pH” refers to the measurement of hydrogen ion activity in the solution. Since the direct measurement of the pH is very difficult... , specific electrodes are needed for quick and accurate pH determination. pH is measured on a scale of 0 to 14, with lower values indicating high H+ (more acidic) and higher values indicating low H+ ion activity (less acidic). A pH of 7 is considered as neutral. Every whole unit in pH represents a ten-fold increase in or decrease in hydrogen ion concentration. Most natural waters possess the pH values ranging from 5.0 to 8.5. Rain water have a pH value of 5.4 to 6.0 which then reacts with the soils and minerals causing the reduction in H+ ion concentration and thus the water may become alkaline with a pH 0f 8.0-8.5. More acid water (pH<5) and more alkaline (pH >9) and other immediate changes in the hydrogen ion concentration (pH) suggest that the quality of the water is adversely affected due to the introduction of some toxic contaminants in water bodies. pH is measured using pH meter, which comprises a detecting unit consisting of a glass electrode, reference electrode, usually a calomel electrode connected by KCl Bridge to the pH sensitive glass electrode and an indicating unit which indicates the pH corresponding to the electromotive force is then detected. Before measurement, pH meter should be calibrated by using at least two buffers. [Show More]

Last updated: 2 years ago

Preview 1 out of 3 pages

Buy Now

Instant download

We Accept:

We Accept
document-preview

Buy this document to get the full access instantly

Instant Download Access after purchase

Buy Now

Instant download

We Accept:

We Accept

Reviews( 0 )

$2.50

Buy Now

We Accept:

We Accept

Instant download

Can't find what you want? Try our AI powered Search

135
0

Document information


Connected school, study & course


About the document


Uploaded On

Nov 12, 2022

Number of pages

3

Written in

Seller


seller-icon
TestGuider Of All Time

Member since 2 years

3 Documents Sold

Additional information

This document has been written for:

Uploaded

Nov 12, 2022

Downloads

 0

Views

 135

Document Keyword Tags

More From TestGuider Of All Time

View all TestGuider Of All Time's documents »

Recommended For You

Get more on Experiment »

$2.50
What is Scholarfriends

In Scholarfriends, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Scholarfriends · High quality services·