The number of water molecules in a drop of water weighing 5 mg is

1.	The number of water molecules in a drop of water weighing 5 mg is
Answer» `6.023 XX 10^(72)` `3.0125 xx 10^(21)` `1.67 xx 10^(20)` `1.67 xx 10^(21)` ANSWER :C

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