The thing is that I did a project from a website which is about the science of mummification and I can't find a way to explain the process of desiccation of the hot dog with the baking soda.
By this I mean to answer questions like: Does the baking soda absorb or adsorb water? If it adsorbs then which type of adsorption is it? What's happening in details between the hot dog and the surrounding baking soda?
Here is the link to the project
My results did show a decrease in mass and size which is explained in the lost of water from the hot dog but how?