What if the water levels were not equal? Calculate the pressure inside Pipet A if the height of the water is 15.0 mm lower than the water in Pipet B. The atmospheric pressure is 760.6 mm Hg. Be sure to consider the difference in units: 1 mm H2O ≠ 1 mm Hg.
Start by converting the height pressure difference from mm H2O to mm Hg.
Report the pressure in Pipet A (in mm Hg) and enter the value of the answer with correct sig figs.
You will find the following formula for pressure useful for the unit conversion.
P = d × g × h, where d = density of liquid; g = gravity; h = height of liquid