Practise 7: reaction of saponification

The saponification is a chemistry reaction between a lipid and a base. The acids fats of the lipids are dificult to hidrate but can brake easily if the lipid is in a basic enviroment.
1-the original recipe to make soap recomendid to use 6 litres of oil or fat, 5 1/2 litres of water and 1 kg of hidroxid sodiam.
2-However, because we have obtained little oil, we are going to redo the calculations to make soap with only 2 ml of oil.
For it, start by calculating the quantity of water that we need in relation to the oil.
Now calculate the quantity of NAOH in relation with the water.
3-Realise in a test tube the disolution of sodium and water with calculated quantity. We more it till the completed disolution of the sodium.
4- Then we add 2ml of oil and we continue moving little by little till it makes the soap.
5-We remove the soap from the tube and we lay it on a petri plaque, and we leave it in the shape of a bar and we leave it to set.
6-After removing the soap we add water to the tube which we done the experiment in and shake it. The abundance foam of the soap indicates us that there is still soap in it.