In the chart below you have been given several compounds’ empirical formulas as well as the molar mass of the actual compound. Determine the molecular formula. Empirical Formula Mass Molar Mass Divide and Multiply! Molecular Formula EXAMPLE P2O5: 141.943 283.9 283.9/141.943=2 x P2O5 P4O10 NH2: 32 C3H5O2: 146 CH2O: 120 Fill in the blanks on "divide and multiply" and "molecular formula"

In the chart below you have been given several compounds’ empirical

1.	In the chart below you have been given several compounds’ empirical formulas as well as the molar mass of the actual compound. Determine the molecular formula. Empirical Formula Mass Molar Mass Divide and Multiply! Molecular Formula EXAMPLE P2O5: 141.943 283.9 283.9/141.943=2 x P2O5 P4O10 NH2: 32 C3H5O2: 146 CH2O: 120 Fill in the blanks on "divide and multiply" and "molecular formula"
Answer» SINCE you are GIVEN the Empirical formula, we can determine the MOLECULAR formula by ... Therefore, we must FIRST determine the Empirical formula mass for P2O5 : P2O5 = ( 2 ) ( 30.97 g / mol ) + ( 5 ) ( 16.00 g/mol ) = 141.94 g / mol ... Since we calculated “n” to equal 2, then the Empirical formula is multiplied by a factor of TW