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Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateCubic CrystalsHard2 minPYQ_2021

ChemistryHardsingle choice

An element with BCC structure has edge length of $500 pm$ . If its density is $4 g cm^{3}$ , find atomic mass of the element?

Options:

Answer:

Solution:

$a = 500 pm = 500 \times 1 0^{- 10} cm = 5 \times 1 0^{- 8} cm Z = 2 (for BCC) d = \frac{ZM}{N _{A} \cdot a ^{3}} M = \frac{d \times N _{A} \times a ^{3}}{Z} = \frac{4 \times 6.022 \times 1 0 ^{23} \times ( 5 \times 1 0 ^{- 8} ) ^{3}}{2} M = 150 g mol^{- 1}$

Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Cubic Crystals

⏱ 2mℹ️ Source: PYQ_2021

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