Question

If a vacuum pump reduces the pressure of a gas to 1.0 x 10-6 atm, what is the pressure expressed in millimeters of mercury

Answer 1

`1.0* 10^(-6)` atmospheres are equivalent to
`7.6* 10^(-4)` millimeters of mercury.

Step-by-step explanation:

According to current SI unit conversions, 1 atmosphere is equal to 760 millimeters of mercury. The current pressure is determined by simple rule of three:

`p = (760\,mm\,Hg)/(1\,atm) * (1* 10^(-6)\,atm)`

`p = 7.6* 10^(-4)\,mm\,Hg`

`1.0* 10^(-6)` atmospheres are equivalent to
`7.6* 10^(-4)` millimeters of mercury.