Question

what are the differences of height in lather in tap, rain and sea water?

Answer 1

Answer:

Water Sample Height of Lather

Distilled water 4 cm

Tap water 2 cm

Boiled tap water 3 cm

Tap water is the hardest and distilled water is the softest.

Difference in results between tap water and boiled tap water:

Tap water contains relatively high amount of calcium and magnesium. This little bit hardness of tap water can be removed by boiling. Hence, when tap water is boiled, the soluble bicarbonates decompose into insoluble carbonates, which can be removed by filtering water through a fine cloth at home. Hence, tap water, due a little hardness, gives little lather, whereas boiled tap water gives comparatively more lather when mixed with soap.