o. The mass of 12:04 Xlolo atoms of...
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o. The mass of 12:04 Xlolo atoms of an element i sing calculate its atomic mass.

JEE/Engineering Exams
Chemistry
Solution
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Total thenmoes of atoms ( =frac{6 pi 0}{12} cdot 04 times 10^{23} ) [ begin{array}{l} operatorname{mol}=frac{12 cdot 04 times 10^{23}}{602 times 10^{23}}=2 mathrm{mol} max =112 mathrm{g} text { molar mans } frac{112}{2} mathrm{g}=56 mathrm{g} text { so, atomic mass }=56 mathrm{U} end{array} ]
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