The empirical formula for the compound is - P₂O₅ the empirical formula is the simplest ratio of whole numbers of components in a compound. molecular formula is the actual ratio of components in a compound. we have to first find the number of empirical units in the molecular formula molecular mass - 283.89 g/mol mass of empirical formula - 283.8 g number of empirical units - 283.89 g/mol / 283.8 g number of empirical units - 1.000 therefore empirical formula = molecular formula molecular formula - P₂O₅
Volume of Hydrogen V1 = 351mL Temperature T1 = 20 = 20 + 273 = 293 K Temperature T2 = 38 = 38 + 273 = 311 K We have V1 x T2 = V2 x T1 So V2 = (V1 x T2) / T1 = (351 x 311) / 293 = 372.56 Volume at 38 C = 373 ml
