A small container contains 1.8gm of water.Calculate-
How many mole of water does it conain?
How many molecules of water does it conatin?
How many atoms of oxygen are present in the give sample?
{atomic mass of hydrogen=1u,atomic mass of oxygen=16u}

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Solution

18 gram of H₂O = 1 mole of Water
1.8 gm of H₂O = 0.1 mole of water
1 mole of H₂O = 6.023 x 10²³water molecules
Therefore 0.1 moles of H₂O = 6.023 x 10²² water molecules.
= 6.023 x 10²² oxygen atoms

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A small container contains 1.8gm of water.Calculate-How many mole of water does it conain?How many molecules of water does it conatin?How many atoms of oxygen are present in the give sample?{atomic mass of hydrogen=1u,atomic mass of oxygen=16u}

18 gram of H2O = 1 mole of Water 1.8 gm of H2O = 0.1 mole of water 1 mole of H2O = 6.023 x 1023 water moleculesTherefore 0.1 moles of H2O = 6.023 x 1022 water molecules. = 6.023 x 1022 oxygen atoms

A small container contains 1.8gm of water.Calculate-
How many mole of water does it conain?
How many molecules of water does it conatin?
How many atoms of oxygen are present in the give sample?
{atomic mass of hydrogen=1u,atomic mass of oxygen=16u}

18 gram of H₂O = 1 mole of Water
1.8 gm of H₂O = 0.1 mole of water
1 mole of H₂O = 6.023 x 10²³water molecules
Therefore 0.1 moles of H₂O = 6.023 x 10²² water molecules.
= 6.023 x 10²² oxygen atoms