Mass percentage is defined as the ratio of mass of the element to the total mass of the compound.
The formula of mass percentage is given by:
Mass percentage = [tex] \frac{mass of the element}{total mass of the compound}\times 100 [/tex] (1)
mass of nitrogen = 56.00 grams
Let x be the total mass of the compound.
Put the given values in formula (1):
[tex] \frac{36.86}{100} =\frac{56.00 g}{x} [/tex]
x= [tex] \frac{100}{36.86}\times 56 g [/tex]
x= 151.92 g
total mass of the compound = 151.92 g
To calculate the mass of oxygen in grams, subtract the mass of nitrogen from the total mass of the compound.
Mass of oxygen = 151.92 g - 56 .00 g = 95.92 g
Thus, mass of oxygen in grams = 95.92 grams.
