Question

The empirical formula of a compound is ch2o 0.25 mole of this compound

Answer 1

empirical formula of the compound is CH2O, its molecular formula can be written as n(CH2O) = C(n)H(2n)O(n),It is given that 0.25 moles of the compound contains 1g of H i.e 0.25 mol -> 1g of H,This means (2n)(0.25) moles of H in the compound contains 1g of H i.e (2n)(0.25) -> 1g,(2n)(0.25) = 1,2n = 12 or n = 6,So the molecular formula of CH2O is C6H12O6