Answer:
Barometric pressure will be [tex]1086.75 cm H_{2}O[/tex]
Explanation:
We know, [tex]P=h\rho g[/tex]
where P is barometric pressure, h is height of liquid inside barometer, [tex]\rho[/tex] is density of liquid and g is gravitational constant
If barometric pressure is x cm [tex]H_{2}O[/tex] for 805 mm Hg then-
[tex]x\times (1.00g/mL)\times g=(805\times 10^{-1}cm Hg)\times (13.5g/mL)\times g[/tex]
So, [tex]x=1086.75 cm H_{2}O[/tex]
Hence barometric pressure will be [tex]1086.75 cm H_{2}O[/tex]
