A buffer solution consists of a 1.00 L aqueous solution containing 0.0080 mol of benzoic acid, and 0.0080 mol of sodium benzoate.
Establish the pH region for this buffer solution at 25 °C.
(Note: K = 6.3 x 10- for CH=COOH(aq))

it's filtration, but this is an assumption so my apologies if i got this

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

gas

explanation:

smoke is the matter of a gas