Question

- Calculate the number of atoms present in one litre of water (density of H20 = 1 g/cc)​

Answer 1

18g have 1na molecules Nd one molecules have 3atom

18-3na atom

1000have -3×1000/18

166 atom

Answer 2

Answer:

Explanation:

The liter of water has 1000 grams. The number of moles is 1000/18 = 55.556 moles. The number of molecules is therefore 6.022*1023 * 55.556 = 3.346*1025 molecules. The number of atoms is 3 times larger because each molecule has three atoms, so there are 1.0038*1026 atoms in a liter of water.