In a chemistry lab 4 moles phosphorus reacts with bromine to produce phosphorus bromide. How many moles of phosphorus bromide would you expect to produce? If you actually produced 960 g of phosphorus bromide what is the percent yield?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).