Question

Calculati procentul masic de carbon si hidrogen din compusul C10H20O

Answer 1

MC10H20O=10•12+20•1+16=120+20+16=156g/mol
156gC10H20O...20gH...16gO
100gC10H20O...x gH...y gO
$x = \frac{100 \times 20}{156}$
x=35,71%H
$y = \frac{100 \times 16}{156}$
y=10,25%O