Unfortunately, P2S33 is not a known chemical compound. There may be some misunderstanding in writing the chemical symbols. Sometimes, confusion can occur when writing chemical symbols, typical is when writing the symbols of phosphorus and sulfur.
Phosphorus and sulfur are both chemical elements and can form many different compounds. Phosphorus is often found in compounds such as P4 (black phosphorus), P4O6 (phosphorus trioxide) or P4O10 (phosphorus pentoxide). Meanwhile, sulfur is usually found in compounds such as S8 (sulfur) or SO2 (sulfur dioxide).
For both of these elements, they can combine to form the compound P2S5, also known as phosphorus pentasulfide, a yellow solid substance that can react with water to create phosphoric acid and hydrogen sulfide.
Make sure that you have thoroughly checked the chemical symbols and ensure accuracy before continuing with the lecture for students.