The density of a liquid is 1.2 g/mL. There are 35 drops in 2 mL. The number of molecules in one drop(molar mass of liquid = 70 g/mol) is :1.2NA(4) 1.2NA351.235(3512 NA
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Answer:
Correct option is C
Explanation:
Volume of one drop = 2/35 ml
Moles in one drop = 2×1.2/35×70
=1.2/(35)² mol
Number of molecules in one drop = 1.2/(35)² × NA
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