How many particles are present in an 8*g8g mass of dioxygen molecules under different conditions of pressure and temperature?

1 Answer
Jun 7, 2017

An 8*g8g mass of dioxygen gas contains the same number of molecules under any conditions.............

Explanation:

And number of molecules.....

="Mass"/"Molar mass of dioxygen"xxN_A=MassMolar mass of dioxygen×NA, where N_ANA == "Avogadro's number,"Avogadro's number, 6.022xx10^23*mol^-16.022×1023mol1,

=(8*g)/(32.00*g*mol^-1)xx6.022xx10^23*mol^-1=8g32.00gmol1×6.022×1023mol1

=1/4xxN_A~=1.5xx10^23=14×NA1.5×1023..............