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Copper crystallises into a fcc lattice with edge length 3.61 xx 10^(-8) cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm^(-8). |
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Answer» Solution :Apply the relation `d=(zxxM)/(a^(3)xxN_(A))`, SUBSTITUTE the values `d=(4xx63.5)/((3.61xx10^(-8))^(3)xx6.022xx10^(23))=8.97gcm^(-3)` The CALCULATED value `(8.97gcm^(-3))` is in reasonable agreement with the MEASURED value `8.92gcm^(-3)`. |
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