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Total hardness of water

Total hardness of water

LC1.2.1.3

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Description

In this experiment students determine the total hardness of a water sample by the formation of foam with a soap solution and with a test stick. Both methods are compared in regard to their accuracy and feasibility.

Components of equipment sets

1	6753410 4	Water, pure, 5 l
1	665754 4	Measuring cylinder 100 ml, with plastic base
1	665997 4	Graduated pipette 10 ml
1	666003 4	Pipetting ball (Peleus ball)
1	602022 4	Beaker Boro 3.3, 100 ml, squat
1	667260 8	Rubber stopper solid, 25...31 mm Ø
1	664243 8	Erlenmeyer flask 250 ml, narrow neck, SB 29
1	610010 8	Laboratory safety goggles
1	MA91201 4	Test sticks total water hardness

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Total hardness of water

Description

Components of equipment sets

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