Soap Lab report #8
The purpose of this experiment is to produce soap. And the main technique mainly focuses on the following chemical equation:
As for the experiment, we use animal fat and NaOH as reactants, and the product are soap with a NaCO3 salt layer.
Type of fat used ________Criso_________________
Weight of fat taken _________58.10____________g_
Weight of NaOH used __________8_.0_0_______g
Weight of soap formed ________52.51_______g_
Use the weight of fat taken and the reaction to find the theoretical yield (weight) of soap bar? Theoretical yield _______63.01______g
% yield = (actual yield (weight of soap formed)/theoretical yield) X 100= ________83.34___%
1)Why do long chain fatty acids melt higher than short chain acids?
Because short chain acids have lower intermolecular forces so that its melt point is lower.
2) Why may you use the same weight of fat in your soap preparation regardless of the type of fat-saturated or unsaturated- employed?
Fats from different sources have different percentages of the common fatty acids, and can be distinguished from one another by a quantitative analysis of these constituents
3) Why are vegetables fats (oils) liquid, while animal fats are solid?
Because vegetable fats are usually unsaturated fatty acid which means it has more C=C. C=C bond distance is shorter than C-C, ...
Right now, cancer is one of the most feared diseases in the world. In the early 1990s almost 6 million new cancer cases developed and more than 4 million deaths from cancers occurred. Also more than one-fifth of all deaths were caused by cancer and it has been predicted, by the American Cancer Society, that about 33% of Americans will eventually de...
Typically, the level of ocean water around the world is higher in the western Pacific and lower in the eastern, near the Western coast of South and North America. This is due primarily to the presence of easterly winds in the Pacific, which drag the surface water westward and raise the thermocline relatively all the way up to the surface in the eas...
The good effects of an avalanche An avalanche clears an area of trees and other obstacles. In the warmer months, land that experienced an avalanche in the previous winter will be clear, which creates a path up the mountain that offers easier traveling for both humans and animals. This helps animals cover ground more easily while hunting and offers...
Most people today believe that the world is a better place than it was 20 to 30 years ago. But I, on the other hand, believe that the world is becoming a very dangerous place. Even though the world's superpowers condemn nuclear and biological warfare, I believe that the next millennium will bring a war that will make them change their beliefs towar...
There is a saying that goes: One must first have an understanding of the past in order to proceed into the future. An archaeologist's job, therefore, is very important because they have the crucial role of interpreting the past through archaeological finds. How does an archaeologist go about doing this? How does he interpret his findings? How are...