Which of the following contains the greatest number of atoms ?(1) 1.0 g of butane (C,H1O)(3) 1.0 g of silver (Ag)(2) 1.0 g of nitrogen (N2(4) 1.0 g of water (H2O)

Which of the following contains the greatest number of atoms ?(1) 1.0

1.	Which of the following contains the greatest number of atoms ?(1) 1.0 g of butane (C,H1O)(3) 1.0 g of silver (Ag)(2) 1.0 g of nitrogen (N2(4) 1.0 g of water (H2O)
Answer» 1 mole each substance contains Avogadro number (NA) moleculesMolar mass of butane is = 12X4 + 1X10 = 58So 58 g contains NAMolecules = 14 NAatoms1 g water contains 14/58 NAatoms = 0.24 NAatomsMolar mass of nitrogen is = 14X2 = 28So 28 g contains NAMolecules = 2 NAatoms1 g water contains 2/28 NAatoms = 0.07 NAatomsMolar mass of silver is = 108So 108 g contains NAatoms1 g water contains 1/108 NAatoms = 0.0093 NAatomsMolar mass of water is = 1X2 + 16 = 18So 18 g contains NAMolecules = 3 NAatoms1 g water contains 3/18 NAatoms = 0.17 NAatomsSo 1 g butane have highest number of atoms.