Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateCubic CrystalsMedium2 minPYQ_2023

ChemistryMediumsingle choice

Calculate the molar mass of an element with density $2.7 g cm^{- 3}$ that forms fcc structure. $[a^{3} \cdot N_{A} = 40 cm^{3} mol^{- 1}]$

Answer:

Solution:

For fcc unit cell, $n = 4$ . $Density (ρ) = \frac{M n}{a ^{3} N _{A}} 2.7 = \frac{M \times 4}{40} M = \frac{2.7 \times 40}{4} = 27 g mol^{- 1}$

Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Cubic Crystals

⏱ 2mℹ️ Source: PYQ_2023

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