Answer
$2.19\times10^{-23}\,g$
Work Step by Step
1 amu=$1.66\times10^{-24}\,g$
$\implies$13.2 amu=$13.2\,amu\times\frac{1.66\times10^{-24}\,g}{1\,amu}$
$=2.19\times10^{-23}\,g$
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