Testing Hardness

Hardness || Testing Hardness || Classroom Data || Testing Rivers ||

Hardness Chart || Glossary || Bibliography || Quiz || About Us || Water Quality

What we used to figure out our results for the creeks and rivers:

What we used:

1.EDTA Titration Cartridge,
2.Delivery Tube,
3.Turn delivery tube to eject few
Drops,
4.Graduated cylinder to measure the
Sample,
5.8N Potassium Hydroxide Standard
Solution,
6.CalVer 2 Calcium Indicator Powder
Pillow,
7.Use Delivery Tube Into The
Solution and swirl the flask till turn
From pink to blue,
8.Get a sample size and an EDTA
Titration Cartridge corresponding
To the expected total hardness
As calcium carbonate (CaCO3) Concentraction.

Titrator and chemicals to put in the water to make it change colors to get the results of what the water hardness is.

This was our first day testing with all the hardness equipment!!

Last date edited Febuary 19th, 2008

Chimacum Middle School

By:Madison M. & Nathan P.