Soap And Detergent Lab

* The above procedures were modified from the "Background on Making Soap and Detergent" on Lab Achieves.

In week 2's experiment for HCl standardization 0.2 g of Na2CO3 was weighed and dissolved into an Erlenmeyer flask filled with 50 mL distilled water. 4 drops of Phenolphthalein were added to the solution and the color was recorded. The solution was titrated with HCl until just before the endpoint (when the solution is very light pink). Solution was cooled to room temperature and the sides of the flask were washed with small amounts of distilled water to get all of the sample back into the solution. The titration was finished (took very little HCl, proceeded slowly). Color of the solution and volume of HCl was recorded. The concentration of HCl was calculated. ( CALCULATIONS) The equipment used for the procedure is as followed: scale, graduated cylinder, beakers, Erlenmeyer flask, hot plate and titration pipette. The chemicals used in the procedure are as followed: pure Na2CO3, distilled water, phenolphthalein concentrated 1% in 50% ETOH/50% H2O, and 0.02 M concentrated HCl.

__ g 〖Na〗_2 〖CO〗_3 × ((1 mol 〖Na〗_2 〖CO〗_3)/(105.99 g 〖Na〗_2 〖CO〗_3 ))= ___ mols 〖Na〗_2 〖CO〗_3

___ mols 〖Na〗_2 〖CO〗_3 × ((2 mol HCl)/(1 mol 〖Na〗_2 〖CO〗_3 ))= ____ mols HCl

((___ mols HCl)/(___ L HCl))= ___ M (mol/L) HCl

* The above procedure

It was a white, thick and oily substance. When the 6M Sodium Hydroxide was added to the Crisco drop by drop, the solution became a light pink color while it appeared to have a smooth surface. During mixing, the Crisco was clumped together, however it seemed to be more fluid than the original Crisco texture. Once heated to a boil, the paste turned a yellowish color and hardened when removed from the heat. The soap was then filtered using suction filtration which turned the soap into a solid 3D structure of multiple different yellowish