Question

chemical equation for soap on hard water​

Answer 1

Hard water contains calcium and magnesium ions, which react with the surfactant anion to give metallic or lime soaps: 2 C17H35COO−Na+ + Ca2+ → (C17H35COO)2Ca + 2 Na. In this reaction, the sodium cation in soap is replaced by calcium to form calcium stearate.

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Answer 2

chemical equation for soap on hard water is 2 C17H35COO−Na+ + Ca2+ → (C17H35COO)2Ca + 2 Na.

• As just a result of the reaction seen between surfactant anion and the calcium and magnesium ions in hard water, metallic or lime soaps is formed: Na+ + Ca2+ 2 C17H35COO + (C17H35COO)2Ca + 2 Na.
• This process converts calcium to calcium stearate by substituting the sodium cation in soap for calcium.
• Hard water is described as having a high concentration of calcium and magnesium salts, mainly in the form of bicarbonates, chlorides, and sulfates.
• Additionally, there may be ferrous iron, that when it reacts with oxygen to the ferric form, leaves a reddish-brown stain on high transmittance of enamel.
• A lot of minerals, including calcium and magnesium, are found in hard water.
• Soft water, on the other hand, is a form of water that has lower concentrations or amounts of minerals like calcium and magnesium.

Therefore, chemical equation for soap on hard water is 2C17H35COO−Na+ + Ca2+ → (C17H35COO)2Ca + 2 Na.

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