Weight of 1 atom of an element is \( 6.644 \times 10^{-23} \mathrm{~g} \). What is number of ato...

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Weight of 1 atom of an element is \( 6.644 \times 10^{-23} \mathrm{~g} \). What is number of atoms of element in \( 40 \mathrm{~kg} \) of it?(A) \( 10^{3} \mathrm{~g} \) atom(B) \( 10^{2} \mathrm{~g} \) atom(C) \( 10^{4} \mathrm{~g} \) atom(D) \( 10 \mathrm{~g} \) atom
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