Answer:
There is no direct relationship between the number of molecules of CH4 and the mass of phosphoric acid. Therefore, we cannot determine the mass of phosphoric acid based on the given information.Phosphoric acid is H3PO4, which contains hydrogen (H), phosphorus (P), and oxygen (O) atoms. CH4 is methane, which contains only carbon (C) and hydrogen (H) atoms. The two molecules are not directly related, and their quantities cannot be compared without additional information.