Răspuns:
MC10H20O= 12×10+20×1+16=156g/mol
156g C10H20O........16gO
100g C10H20O..........xgO
x=100×16/156=calculează
MC10H14O=12×10+1×14+16=150g /mol
150g C10H14O........16gO
100g C10H14O.........YgO
Y=100×16/150= calculează
MC10H18O =12×10+1×18+16=154g/mol
154g C10H18O.........16gO
100g C10H18O..........zg
z=100×16/154= calculează