Sodium octadecanoate has a chemical formula CH3(CH2)6 COO-Na+, which is used as soap. Explain why a lot of soap is needed when washing with hard water

      

Sodium octadecanoate has a chemical formula CH3(CH2)6 COO-Na+, which is used as soap.
Explain why a lot of soap is needed when washing with hard water

  

Answers


Maurice
The first amount of soap precipitates Ca2+(aq) and Mg2+(aq) ions and soften water.
Then additional soap dissolves oil from the fabric.
maurice.mutuku answered the question on November 1, 2019 at 11:25


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