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Colourimetric determination of copper ore

Description

An ore is any rock from which a metal may be extracted. To decide whether an ore is worth mining it is necessary to find out how much of the useful mineral it contains. This experiment illustrates an example of how this might be done.

colourimetric-determinati...



Apparatus Chemicals

Goggles

Each student or pair of students will require:

Beaker (250 cm3)

Beaker (100 cm3)

Volumetric flask (100 cm3)

Small filter funnel and filter paper, to fit volumetric flask

Test-tubes, 6 (Note 1)

Test-tube rack

Plastic weighing dish (boat)

Measuring cylinder (50 cm3)

Measuring cylinder (10 cm3)

Access to:

A balance (weighing to the nearest 0.1 g)

Purified (deionised or distilled) water

Dilute sulfuric acid, 2M (CORROSIVE), 40 cm3

Sample of powdered ore (see technical notes) (HARMFUL, DANGEROUS FOR THE ENVIRONMENT), 10 g

Copper(II) sulfate solution, 1M, 25 cm3 (HARMFUL, DANGEROUS FOR THE ENVIRONMENT)

Refer to Health & Safety and Technical notes section below for additional information.

 



 

 




Page last updated February 2016

An ore is any rock from which a metal may be extracted. To decide whether an ore is worth mining it is necessary to find out how much of the useful mineral it contains. This experiment illustrates an example of how this might be done.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.