Answer: 0.43molO₂
Explanation:
The ideal gas law for moles is [tex]n=\frac{PV}{RT}[/tex]. If you did not know, R is the ideal gas constant, [tex]0.0821\frac{L*atm}{mol*K}[/tex].
Since the temperature must be in Kelvin, we must convert our given temperature from ℃ to K. [tex]19C+273=292K[/tex]
Now that we have the temperature converted to Kelvin, we can plug in our information to the ideal gas law for the number of moles.
[tex]n=\frac{PV}{RT}[/tex]
[tex]n=\frac{1.38atm*7.51L}{0.0821\frac{L*atm}{mol*K} *292K} =0.43molO_{2}[/tex]
[tex]n=0.43molO_{2}[/tex]
Therefore, the number of moles is 0.43molO₂.
I hope this helps! Pls mark brainliest!! :)
