Figure below shows the shape of a nitric acid (HNO3)molecule and its dimensions. Treating the atoms as particles, findthe center of mass of this molecule. a)I know that xcm=m1x1+m2x1+...../Total mass. The total mass in this case is 63 but based on the picture I dont know which mass I should plug in for the x values. b)ycm=0 because there is no y axis.