Find the number of molecules of water present in 200cm cube of its volume ?
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sry I do not know pls forgive me
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ANS; A
Mass of water =0.05×1 = 0.05 gm
In 1 mole of water = 18 gm
In 0.05 gm of water =
18
0.05
= 0.0027 mole
In 0.05 gm number of molecule = 0.0027×6.022×10
23
= 1.66×10
21
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