What is the total pressure (in atm) of the mixture when a 5-L flask
at 15 °C contains a mixture of nitrogen, helium, and neon gases at
a partial pressure of 0.32 atm for nitrogen, 0.15 atm for helium,
and 0.42 atm for neon?
O 0.35
0.73
O 0.64
O 0.89
O 0.49