Microwaves are used to heat food in microwave ovens. The microwave radiation is absorbed by moisture in the food. This absorptio
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Solution :
lt is given that in 18 mL of water their are water molecules.
We know, that 1 molecule of water contains 2 atoms of hydrogen.
Hydrogen atom in 18 mL water is,
.
So, number of hydrogen atoms in 1 L = 1000 mL are :
Hence, this is the required solution.