Density is defined as the ratio of mass to the volume.
Density =
(1)
Mass of water = 10 grams
Mass of acetone = 10 grams
Density of water = 1 ![\frac{g}{cm^{3}}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bg%7D%7Bcm%5E%7B3%7D%7D%20)
Density of acetone = 0.7857 ![\frac{g}{cm^{3}}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bg%7D%7Bcm%5E%7B3%7D%7D%20)
Put the value of density of water and its mass in equation (1)
1
= ![\frac{10 g}{volume}](https://tex.z-dn.net/?f=%20%5Cfrac%7B10%20g%7D%7Bvolume%7D%20)
Volume of water = 10 ![cm^{3}](https://tex.z-dn.net/?f=%20cm%5E%7B3%7D%20)
Put the value of density of acetone and its mass in equation (1)
0.7857
= ![\frac{10 g}{volume}](https://tex.z-dn.net/?f=%20%5Cfrac%7B10%20g%7D%7Bvolume%7D%20)
Volume of acetone = 12.72 ![cm^{3}](https://tex.z-dn.net/?f=%20cm%5E%7B3%7D%20)
Thus, volume of acetone is more than volume of water because the density of acetone is lower.
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Nitrous Acid.
Hyponitrous acid: H2N2O2
Nitric acid: HNO3
Pernitric acid: HNO
Maximum number of electrons in nth energy level
![\\ \sf\longmapsto 2n^2](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%202n%5E2)
Now
Max electrons
![\\ \sf\longmapsto 2(1)^2](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%202%281%29%5E2)
![\\ \sf\longmapsto 2e^-](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%202e%5E-)