Game:

Command & Conquer (1995)

Duration: 4:23

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A solid AB crystallizes as \( C C P \) for A atoms and B atoms occupy half of the tetrahedral voids. One litre of the crystal is doped with 1 mole atoms of \( C \) , some of which replace the B atoms and remaining occupies new interstitial voids without affecting the dimensions of the crystal. If the density of the crystal before doping is \( 4.8 \mathrm{~g} / \mathrm{cm}^{3} \) and the density after doping is \( 4.795 \mathrm{~g} / \mathrm{cm}^{3} \), then the percentage of \( C \) atoms which replace \( B \) atoms is (Atomic masses of \( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) are 40,30 and 15, respectively)
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