The partial pressure of the neon gas is 0.48 atm in the flask with total pressure of 1.87 atm.
Step-by-step explanation:
Data given:
total pressure of all the gases in the flask = 1.87 atm
partial pressure of krypton gas = 0.77 atm
partial pressure of helium gas = 0.62 atm.
partial pressure of neon =?
from the data given in question it is deduced that neon gas is also present in the flask.
from the Dalton's law of pressure:
Ptotal = pkrypton + phelium +p neon (p= partial pressure of individual gases)
pneon = Ptotal - pkrypton + p helium
pneon = 1.87 - (0.77 + 0.62)
pneon = 1.87 - 1.39
pneon = 0.48 atm
The partial pressure of the neon gas is 0.48 atm in the flask.