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AP EAMCET202318 May 2023Morning ShiftChemistrySolid StateActual

Silver forms CCP structure and it's density is 10.5 ~g / cm ^3 . What is the edge length of unit cell. (molar mass of silver is 107.9 ~g / mol )

Options

  1. A[3] 0.68 Å
  2. B[3] 48 Å
  3. C[3] 68.1 Å
  4. D[3] 680 Å

Correct answer

C. [3] 68.1 Å

Step-by-step solution

d = ZM N _ A a ^3 a ^3= ZM N _ A d = (4)(107.9) (6.022 10²³ )(10.5) aligned & =6.825 10⁻²³ ~cm ^3 & =6.825 10⁻²³ (10^8 Å )^3 & =6.825 10⁻²³ 10²⁴ Å & =68.25 Å a = [3] 68.25 Å aligned

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