To find the volume of water with the same mass as 8.58 m³ of ethyl alcohol, the calculation yields approximately 6.7782 m³. The pressure at the bottom of a cubic tank filled with this volume of water can be calculated using the formula Pb = Pa + density * g * h, where h is derived from the cube root of the volume. Atmospheric pressure (Pa) should be included in the calculations, typically taken as 101,300 Pa. The pressure calculation using the density of water and the height derived from the volume should yield the correct pressure in Pascals. Accurate unit conversion and consideration of atmospheric pressure are essential for correct results.
