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MHT CET202210 Aug 2022Morning ShiftChemistrySolid StateActual

Calculate the molar mass of metal with density 1 gcm ⁻³ forming bcc structure with edge length 420 pm .

Options

  1. A32.2 ~g ~mol ⁻¹
  2. B22.3 ~g ~mol ⁻¹
  3. C25.5 ~g ~mol ⁻¹
  4. D43.3 ~g ~mol ⁻¹

Correct answer

B. 22.3 ~g ~mol ⁻¹

Step-by-step solution

d = Z V M N _ A 1= 2 M (4.20 10⁻⁸ )^3 6.02 10²³ M =22.3 ~g / mol

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