The total mass of carbon and oxygen in the unknown compound can be calculated by subtracting the mass of hydrogen from the total mass:
10.7696 g - 12.1068 g = -1.3372 g (mass of carbon and oxygen)
This negative value indicates an error in the measurements, as the mass of the compound cannot be less than the mass of its components. Therefore, it is not possible to accurately calculate the mass of oxygen produced in the combustion reaction.
An unknown compound of mass 10.7696 g containing carbon, hydrogen and oxygen was combusted in oxygen producing CO2 (29.5747 g) and H2O (12.1068 g). Caluculate the mass of oxygen produced? (Atomic masses of C-12.011 g/mol; O-15.999 g/mol; H-1.008 g/mol).
1.509 g
0.672 g
8.071 g
1.3438 g
1 answer
1 answer