Question #d90e9

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Question #d90e9

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Answer 1 · 2016-02-29T12:01:21

$1.5 \cdot 10^{23}$ $1.5*10^23$ molecules

Explanation:

.25 mol O $\frac{6.022 \cdot 10^{23}}{1 m o l O}$ $(6.022 * 10^23)/(1 mol O)$ = $1.5 \cdot 10^{23}$ $1.5*10^23$ molucules

When asked to find the number of molecules of any element, you multiply the number of moles by Avogadro's number, $6.022 \cdot 10^{23}$ $6.022 * 10^23$ .

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