What is Soap? for What is It Used? - Chemistry

What is soap? For what is it used?

One Line Answer

Soap is chemically a sodium salt of stearic acid (an organic acid with the formula C₁₇H₃₅COOH) and has the formula C₁₇H₃₅COONa.

Soap is used for washing purposes.

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Water - a Universal Solvent

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Chapter 3: Water - Exercise 3 (C) [Page 52]

Chapter 3 Water
Exercise 3 (C) | Q 15 | Page 52

Give two example of Solvent other than water.

Give reason for Table salt becomes moist during rainy season.

What are the observations and conclusions when tap water is boiled and evaporated in watch glass?

What is the importance of dissolved salts in water?

How is air dissolved in water different from ordinary air?

Explain why:

Ice at zero degrees centigrade has greater cooling effect than water at 0^oC.

Explain the terms:

Solvent

Name the gas that:

Does not affect acidified K₂Cr₂O₇ paper but turns lime water milky.

Give a reason why boiled water tastes flat.

Explain the importance of dissolved salts in water.