Measuring Solubility of Soap

Solubility is one of the determining factors to imply that soap has high cleaning power. It is defined as the maximum amount of solute dissolved at a given solvent. It is expressed in grams per milliliter unit. It can be measured by putting known measured mass (in grams) of soap into a known measured volume (in mL) of distilled water. Powderized 1/8 of the experimental and commercial bar soap. In a known controlled amount of the powderized soap, dissolve little amount of it in distilled water about 100 mL or less and then stir. Check if all the powder is dissolved. Continue adding known small amount of the powder if no particles are seen in the water. Stop when undissolved particles are seen in the mixture. Soap’s solubility is reached when the powder do not dissolve any more. Of course do the solubility measurement of the experimental and commercial soap separately. Remember to do 3 trials for solubility measurement. Get the average and ask a statistician to help you conclude whether the experimental soap is comparable to the commercial soap.
Complete the sample table to help you determine the solubility of soap.

Solubility of Experimental and Commercial Soap (First Trial)

You can improve the table depending on the nature of your study.


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