If the total pressure of the mixture is 1.55 atm

, calculate the partial pressure of the blue gas.
Express the answer in atmospheres to two significant figures.

Since the total pressure of the mixture is 1.55 atm and the partial pressure of the red gas is 0.69 atm, we can calculate the partial pressure of the blue gas by:

Partial pressure of blue gas = Total pressure - Partial pressure of red gas
Partial pressure of blue gas = 1.55 atm - 0.69 atm
Partial pressure of blue gas = 0.86 atm

Therefore, the partial pressure of the blue gas is 0.86 atm.