Answer:
There are 0,081 moles.
Explanation:
We convert the unit of temperature in Celsius into Kelvin and the pressure in mmHg into atm:
0°C= 273K --> 15°C= 15 + 273= 288 K
760 mmHg----1 atm
965 mmHg----x= (965 mmHg x 1 atm)/760 mmHg= 1, 27 atm
We use the formula:
PV=nRT ---> n= PV/RT
n= 1, 27 atm x 1, 5 L/0,082 l atm/K mol x 288K
n=0,08066565 mol
