Complete combustion of 3 g of ethane gives $x \times 10^{22}$ molecules of water. The value of $x$ is
$\_\_\_\_$ (Round off to the Nearest Integer).
[Use : $\mathrm{N}_{\mathrm{A}}=6.023 \times 10^{23}$; Atomic masses in $\mathrm{u}: \mathrm{C}: 12.0 ; \mathrm{O}: 16.0 ; \mathrm{H}: 1.0]$
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