Question

How many moles of hydrogen (H2) fill a weather balloon whose volume is 250 L at a pressure of 0.96 atm with a temperature of -10.0 degrees Celsius

Answer 1

`n=11.1mol`

Step-by-step explanation:

Hello,

In this case, we use the ideal gas equation which allows us to understand the pressure-volume-mole-temperature behavior of hydrogen gas:

`PV=nRT`

Thus, solving for the moles, we obtain:

`n=(PV)/(RT)`

We cannot forget that the temperature should be used in absolute units (Kelvins), therefore, the resulting moles turn out:

`n=(0.96atm*250L)/(0.082(atm*L)/(mol*K)*(-10.0+273.15)K) \\\\n=11.1mol`

Best regards.