How many a) molecules b) hydrogen atoms c) oxygen atoms are there in 0.5 mole of water.
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Answered by
60
no. of molecules in 1 mole H2O is 6.022× 10^23.
so no of moles in 1/2 or 0.5 mole is 1/2 × 6.022× 10^23 = 3.011×10^23.
so no of moles in 1/2 or 0.5 mole is 1/2 × 6.022× 10^23 = 3.011×10^23.
Divyasinha1:
also.. no. of Hydrogen atoms is 6.022×10^23 and no. of ocygen atoms is 3. 011 ×10^23
Answered by
76
Number of molecules, hydrogen atoms and oxygen atoms present in 0.5 mole of water
a) Molecules in 0.5 mole of water
WKT
1 mol of water = 6.022× molecules
∴ 0.5 mol of water =
0.5 mol of water = molecules.
b) Hydrogen atoms
Water is composed of 2 hydrogen atoms and one oxygen atom.
1 mol of water = 2 × 6.022× atoms of hydrogen
∴ 0.5 mol of water =
0.5 mol of water = 6.022× atoms of hydrogen.
c) Oxygen atom
Water contains one atom of oxygen.
1 mol of oxygen = 6.022× atoms of oxygen
0.5 mol of oxygen =
0.5 mol of oxygen = molecules.
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