Assume a substance X has a body centered cubic lattice. The edge length is 379.0 pm. The atomic mass of X is 195.0 amu What is the density o

Question

Assume a substance X has a body centered cubic lattice. The edge length is 379.0 pm. The atomic mass of X is 195.0 amu What is the density of Xin g/cc

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Hưng Khoa 6 months 2021-07-31T03:26:26+00:00 1 Answers 3 views 0

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    2021-07-31T03:28:22+00:00

    Answer:

    \rho=12g/cm^3

    Explanation:

    From the question we are told that:

    Lengthl=379.0pm=>379*10^{-10}cm

    Atomic mass of X M= 195.0 amu=>gmol^{-1}

    Where

    Avogadro\ constant = 6.023 * 10^{23} mol-1

    Let

    The Number of units in BCC unit cell n= 2

    Generally the equation for Density is mathematically given by

    \rho= \frac{M x n}{l^3*Avogadro constant}

    \rho=\frac{197 x 2}{(379*10^{-10})^3*6.023 x 10^{23}}

    \rho=12g/cm^3

    Therefore he density of Xin g/cc

    \rho=12g/cm^3

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