How could you test the Law of Conservation of Mass while baking cookies?

Mass is lost during the chemical reactions which take place during the process of baking. Oxygen was released from the cookies when they are baked and makes them lose a fraction of their total mass.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".