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# Silver (atomic weight = $108 g mol^{–1}$) has a density of 10.5 g $cm^{–3}$. The number of silver atoms on a surface of area $10^{–12} m^2$ can be expressed in scientific notation as $y \times 10X$. The value of x is

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Hence (C) is the correct answer.
answered Jun 5, 2014

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