Chemistry, asked by kukkusanthosh555, 1 year ago

In the laboratory of a school, the sample of hard water is not available "to study the comparative cleaning capacity of a sample soap in soft and hard water". Which salt from the laboratory can be added to tap water to make it hard ? In the experiment how is cleaning capacity of soap compared ?

PLEASE GIVE ME THE ANSWER FAST :(

Answers

Answered by student1906

Hard water, water that contains salts of calcium and magnesium principally as bicarbonates, chlorides, and sulfates. Ferrous iron may also be present; oxidized to the ferric form, it appears as a reddish brown stain on washed fabrics and enameled surfaces.

kukkusanthosh555: It was helpful..... but...... can you please tel....l "Which salt from the laboratory can be added to tap water to make it hard".

student1906: Epson Salt(Magnesium Sulfate)

kukkusanthosh555: THANKS

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