Answer
$P=1.16atm$
Work Step by Step
We know that
$PV=nRT$
This can be rearranged as
$P=\frac{nRT}{V}$
We plug in the known values to obtain:
$P=\frac{0.448\times 0.08206\times 315}{10.0}$
$P=1.16atm$
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