Assume that you have an open-end manometer filled with ethyl alcohol (density = 0.7893g/ml at 20 ∘c ) rather than mercury (density = 13.546g/ml at 20 ∘c ). what is the pressure (in pascals) if the level in the arm open to the atmosphere is 52.4 cm higher than the level in the arm connected to the gas sample and the atmospheric pressure reading is 759.2 mm hg ?