Answer to Question #148292 in General Chemistry for Armando

Question

If we build a barometer using hexane (density equal to 0.655 g/mL) calculate the height of the equivalent column that exerts the same pressure as 76 cm of Hg

Answer 1

pressure = d_Hg*g*h_Hg = d_Hexane*g*h_Hexane (d is density); d_Hg = 13.6 g/mL

d_Hg*h_Hg = d_Hexane*h_Hexane

h_Hexane=d_Hg*h_Hg/d_Hexane = (13.6 g/mL)*(76 cm)/(0.655 g/mL) = 1578 cm