Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateCubic CrystalsMedium2 minPYQ_2023

ChemistryMediumsingle choice

Calculate the density of an element having molar mass $27 g mol^{- 1}$ that forms fcc unit cell. $[a^{3} \cdot N_{A} = 38.5 cm^{3} mol^{- 1}]$

Answer:

Solution:

Density, $ρ = \frac{M n}{a ^{3} N _{A}}$ $ρ = \frac{27 g mol ^{- 1} \times 4 atom}{38.5 cm ^{3} mol ^{- 1}} = 2.8 g cm^{- 3}$

Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Cubic Crystals

⏱ 2mℹ️ Source: PYQ_2023

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