to study the comparative cleaning capacity of soap in soft and hard water students were asked to take the following important precautions
a) Do not use tap water
b) Do not add more soap solution
Explain why the above precautions were asked to be taken while doing the experiment
Answers
Answered by
3
Hello,
The presence of calcium and magnesium salts will react in water precipitates the soap which reduces the cleansing as well foaming capacity. Soap dissolves in soft water but gets precipitated in hard water. Hard water reduces the cleansing effectiveness of soap due to the presence of salts.
2. The addition of more soap solution will thicken the liquid soap.
Hope it helped.
Similar questions