Halliday, Resnick & Walker — Fluids: Problem 51

51 In one observation, the column in a mercury barometer (as is shown in Fig. 14-5a) has a measured height $h$ of $740.35\text{ mm}$. The temperature is $-5.0^\circ\text{C}$, at which temperature the density of mercury $\rho$ is $1.3608 \times 10^4\text{ kg/m}^3$. The free-fall acceleration $g$ at the site of the barometer is $9.7828\text{ m/s}^2$. What is the atmospheric pressure at that site in pascals and in torr (which is the common unit for barometer readings)?