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InterviewSolution
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Determine the mass of the following : (i) `6.022 xx 10^(23)` number of `O_(2)` molecules (ii) `6.022 xx 10^(23)` number of O atoms . |
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Answer» (i) The number of moles = `("number of molecular")/("Avogadro constant") = (6.022 xx 10^(23))/(6.022 xx 10^(23)) = 1`. Now , mass = mole `xx` molecular mass = `1 xx 32 = 32` g (ii) The number of moles `= ("number of atoms")/("Avogadro constant") = (6.022 xx 10^(23))/(6.022 xx 10^(23)) = 1` . Now , mass = mole `xx` atomic mass = `1 xx 16 = 16` g |
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