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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2015

ChemistryEasysingle choice

Assertion: One mole of $NaCl$ contains $6.023 \times 1 0^{23}$ molecules of sodium chloride. Reason : $58.5 g$ of $NaCl$ also contains $6.023 \times 1 0^{23}$ molecules of $NaCl$ .

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Solution:

Molar mass or mass of 1 mole of $NaCl$ $= 23 + 35.5 = 58.5 g$ According to mole concept, 1 mole of molecules $=$ Gram molecular mass $= 6.023 \times 1 0^{23}$ molecules $∴ 58.5 g$ of $NaCl$ also contains $6.023 \times 1 0^{23}$ molecules of $NaCl$ .

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

⏱ 2mℹ️ Source: PYQ_2015

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