Question: explain why the molecular formula for hydrogen peroxide is h2o2?
Answer: The molecular formula H2O2 is a multiple of the empirical formula. We can know this because the ratio of 2H:2O is not the lowest whole number ratio. By dividing the subscripts by 2 , we can determine the lowest whole number ratio, which is 1H:1O . Therefore, the empirical formula for H2O2 is HO .