Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.
The formula is m = D x V D = <span>13.69 g/cm^3. </span>V = <span>15.0 cm^3 the mass of the liquid mercury is m= </span>13.69 g/cm^3 x 15.0 cm^3 = 195g the molar mass of Hg is 200, 1 mole of Hg = 200g Hg, so #mole of Hg= 195 / 200 = 0.97 mol but we know that 1 mole = 6.022 E23 atoms 0.97 mole=?
