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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

The density of a liquid is 1.2 g/mL. There are 35 drops in 2 mL. The number of molecules in 1 drop is
(Molecular weight of liquid = 70)

Options:

Answer:

Solution:

Volume of one drop $= \frac{2}{35} m L$
Number of moles in one drop $= \frac{2 \times 1.2}{35 \times 70} = \frac{1.2}{(35)^{2}}$
Number of molecules in one drop $= \frac{1.2}{(35)^{2}} \times N_{A}$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Mole ConceptSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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