\textbf{213 --} If the percent yield of the following reaction (after balancing) is $80\%$, and $9.2$ grams of ethanol is used in the reaction, how many grams of diethyl ether are obtained?
$$(H = 1\ ,\ C = 12\ ,\ O = 16 : \text{g.mol}^{-1})$$
$$\text{CH}_3\text{CH}_2\text{OH} \xrightarrow[\text{heat}]{\text{catalyst}} \text{CH}_3\text{CH}_2\text{OCH}_2\text{CH}_3 + \text{H}_2\text{O}$$
(1) $5.92$ \hfill (2) $7.4$ \hfill (3) $11.84$ \hfill (4) $23.68$
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