The pH value of various water samples (with the Cobra3 Chem-Unit)

 Product No: P4100640

Principle

Determination of the pH-values.

Tasks

  1. To determine the pH-values of various water samples.
  2. To discuss the reasons for the big differences in pH-value.

What you can learn about

  • pH of water samples
  • Demineralised water
  • Aquarium water
  • Rainwater
  • Lake water
  • River water
  • Drinking water
  • Mineral water
  • Seasonal and daily fluctuations
  • Buffering effects
  • Poisoning effects for animals



Materiallist (Excerpt) Product Amount
Cobra3 Chem-Unit, USB 12153-50 1
Software Cobra3 Chem-Unit 14520-61 1
Immers. probe NiCr-Ni, teflon, 200°C 13615-05 1
pH-electrode, plastic body, gel, BNC 46265-15 1
Power supply 12V / 2A 12151-99 1
Support base variable 02001-00 1
Support for two electrodes 45284-10 1
Water, distilled 5 l 31246-81 1
Buffer solution, pH 4.01, 1000 ml 46270-12 1
Buffer solution, pH 10.01,1000 ml 46272-12 1
Data cable, plug/ socket, 9 pole 14602-00 1
Boss head 02043-00 1
Support rod, stainless steel, 500 mm 02032-00 1
Glass beaker DURAN®,tall, 150 ml 36003-00 7
Glass beaker DURAN®, tall, 50 ml 36001-00 2
Wash bottle, plastic, 500 ml 33931-00 1

Literature for this article als follows

Title Product Language
TESS expert Handbook Laboratory Experiments Biology 16506-02 ENG

back to corresponding listview

Product No: P4100640

Recommend this page  ∇

X-ray expert unit

This product is a world first

PHYWE presents the new x-ray unit: innovative technology, top safety, maximum comfort!

More