We can do this by multiplying the volume of the fitting by the density of brass. The volume is given as 112.5 cm³ and the density is given as 8.48 g/cm³. So, the total mass of the fitting is:
\[112.5 \, \text{cm}^3 \times 8.48 \, \text{g/cm}^3 = 954 \, \text{g}\]
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