Answer
Please see the work below.
Work Step by Step
We know that
$Specific \space heat=\frac{q}{m\Delta t}$
We plug in the known values to obtain:
$Specific heat=\frac{47.0J}{35.4g(3.45C^{\circ})}=0.03422\frac{J}{g.C^{\circ}}$
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