What will be the apparent weight in pounds of a 3.97 cubic foot solid block of aluminum when it is completely submerged under the surface of the sea?

Densities of Various Materials Material Mass Density Weight Density (in kg/m') (in 1b/ft) Aluminum 2700 169 Brass 8600 537 (80% Cu 20% Zn) Brass 8200 512 (50% Cu 50% Zn) Concrete 2300 144 Copper 8890 555 Glass 2600 162 Gold 19300 1204 Ice 920 57.5 Iron 7850 490 Lead 1 1300 705 Mercury (liquid) 13600 850 Salt (sea) Water 1025 64 Silver 10500 654 Tin 7290 455 Water (liquid) 1000 62.4 Zinc 7050 440 Note: The number listed above have been rounded off and it should be noted that most materials are not "pure" and if for no other reason than that, the density of a particular sample of one of the materials listed above could be different from indicated even without measurement and rounding errors taken into account. Furthermore some like brass are actually made up of combinations of other materials as well and depending upon the actual proportions used in their manufacture, the density will vary. Note: brass is made by combining copper and zinc. As the ratio of copper to zinc changes, so does the density of the resulting material