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 =
(1)
mass of nitrogen = 56.00 grams
Let x be the total mass of the compound.
Put the given values in formula (1):
![\frac{36.86}{100} =\frac{56.00 g}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B36.86%7D%7B100%7D%20%3D%5Cfrac%7B56.00%20g%7D%7Bx%7D%20)
x= ![\frac{100}{36.86}\times 56 g](https://tex.z-dn.net/?f=%20%5Cfrac%7B100%7D%7B36.86%7D%5Ctimes%2056%20g%20)
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.
Answer:
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Explanation:
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The density of an object is mass / volume. These units are unusual but since you are reporting your answer in kg/L, the actual conversion is unnecessary
d = m/V
d = 7.2 kg / 9 L
d = 0.8 kg / L
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