Question

Acetaldehyde has the chemical formula C₂H4O. Calculate the number of moles and C₂H₂O molecules in 475 g of acetaldehyde. HINT (a) moles moles (b) molecules molecules

Answer 1

Moles= mass/relative formula mass(RFM)
RFM of C2 H2 O = (12x2)+2+16=42
Mass = 475
475/42=
11.31 moles