The number of water molecules formed in 0.675g is 0.22 x 10²³.
We calculate the number of molecules by using relation of Avogadro number as follows:
No. of molecules = 1 mole of substance = n (Avogadro number) = molecular weight
So, molecular weight = n
Molecular weight of water is 18g
Value of n is 6.022 x 10²³
so, 18g of water has 6.022 x 10²³ molecules
18g ≡ 6.022 x 10²³
1g ≡ 6.022 x 10²³/18
0.675g ≡ (6.022 x 10²³/18) x 0.675
= 0.22 x 10²³ molecules
So, 0.675g of water has 0.22 x 10²³ molecules.
For more information about no of water molecules , refer:
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