Answer : The total pressure in the flask is, 34.9 torr
Explanation :
As we know that the total pressure is the sum of the partial pressure of the gases.
The formula used is :
[tex]p_T=p_{Ar}+p_{He}+p_{F}[/tex]
where,
[tex]p_T[/tex] = total pressure in the flask = ?
[tex]p_{Ar}[/tex] = partial pressure of argon = 14.1 torr
[tex]p_{He}[/tex] = partial pressure of helium = 12.2 torr
[tex]p_{F}[/tex] = partial pressure of fluorine = 8.6 torr
Now put all the given values in the above formula, we get
[tex]p_T=14.1+12.2+8.6=34.9torr[/tex]
Therefore, the total pressure in the flask is, 34.9 torr
