calculate total number of atoms in 18g of water
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3.35×10power19 is the answer
I hope this will help u
I hope this will help u
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Molar mass of water = 18gm
Therefore 18gm of water contains 1mole of water i.e. 18 gm of water contains 6.023 × 10²³ molecules.
Now, 1 molecule of water contains 2 atoms of hydrogen and 1 atom of oxygen i.e. 3 atoms.
Therefore 6.023 × 10²³ molecules contain 6.023 × 10²³ × 3 = 1.8069 × 10²⁴ atoms.
Therefore 18 gm of water contains 1.8069 × 10²⁴ atoms.
Therefore 18gm of water contains 1mole of water i.e. 18 gm of water contains 6.023 × 10²³ molecules.
Now, 1 molecule of water contains 2 atoms of hydrogen and 1 atom of oxygen i.e. 3 atoms.
Therefore 6.023 × 10²³ molecules contain 6.023 × 10²³ × 3 = 1.8069 × 10²⁴ atoms.
Therefore 18 gm of water contains 1.8069 × 10²⁴ atoms.
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