A copper complex crystallising in a CCP lattice with a cell edge of 0.4518 nm has been revealed by employing X-ray diffraction studies. The density of a copper complex is found to be 7.62 g cm$-$3. The molar mass of copper complex is ____________ g mol$-$1. (Nearest integer)
[Given : NA = 6.022 $\times$ 1023 mol$-$1]
Answer (integer)
106
Solution
$$d\left( {{{gm} \over {cc}}} \right) = {{4 \times {M \over {{N_A}}}} \over {{{(a\,cm)}^3}}}$$<br><br>$$7.62 = {{4 \times M/6.022 \times {{10}^{23}}} \over {{{(0.4518 \times {{10}^{ - 7}}cm)}^3}}} $$<br><br>$\Rightarrow$ M = 105.8 g/mol
About this question
Subject: Chemistry · Chapter: States of Matter · Topic: Gas Laws
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