Question

The number of water molecules present in a drop of water weighing 0.018 gm is 6.022× __________. *

10^26
10^23
10^20
10^19

Answer 1

Answer:

Your answer is here

Explanation:

Answer. Number of moles=0.018/18=0.001 moles of water. 1mole of water[ 18g ] contains 6.022 x 10²³ molecules

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