## Chemistry: A Molecular Approach (3rd Edition)

$0.0711$ $mol$ $O$
Use a mole ratio in order to determine the number of moles of oxygen atoms in each compound. $0.0237$ $mols$ $H_{2}CO_{3}$$\times\frac{3 mol O}{1 mol H_{2}CO_{3}}$ $=0.0711$ $mols$ $O$